2139684750 has 192 divisors, whose sum is σ = 6706417536. Its totient is φ = 482112000.

The previous prime is 2139684749. The next prime is 2139684751. The reversal of 2139684750 is 574869312.

2139684750 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2139684749) and next prime (2139684751).

It is a Harshad number since it is a multiple of its sum of digits (45).

2139684750 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2139684696 and 2139684705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139684751) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1148820 + ... + 1150680.

It is an arithmetic number, because the mean of its divisors is an integer number (34929258).

It is a 1-persistent number, because it is pandigital, but 2⋅2139684750 = 4279369500 is not.

Almost surely, 2^2139684750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139684750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3353208768).

2139684750 is an abundant number, since it is smaller than the sum of its proper divisors (4566732786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2139684750 is a wasteful number, since it uses less digits than its factorization.

2139684750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2139684750 is about 46256.7265378777. The cubic root of 2139684750 is about 1288.5954606700.

The spelling of 2139684750 in words is "two billion, one hundred thirty-nine million, six hundred eighty-four thousand, seven hundred fifty".