2149365870 has 96 divisors (see below), whose sum is σ = 5930496000. Its totient is φ = 538921152.

The previous prime is 2149365797. The next prime is 2149365901. The reversal of 2149365870 is 785639412.

2149365870 is a `hidden beast` number, since 21 + 49 + 3 + 6 + 587 + 0 = 666.

2149365870 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

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

2149365870 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113331 + ... + 130929.

It is an arithmetic number, because the mean of its divisors is an integer number (61776000).

It is a 1-persistent number, because it is pandigital, but 2⋅2149365870 = 4298731740 is not.

Almost surely, 2^2149365870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2149365870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2965248000).

2149365870 is an abundant number, since it is smaller than the sum of its proper divisors (3781130130).

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

2149365870 is a wasteful number, since it uses less digits than its factorization.

2149365870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17694 (or 17691 counting only the distinct ones).

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

The square root of 2149365870 is about 46361.2539735499. The cubic root of 2149365870 is about 1290.5359770258.

The spelling of 2149365870 in words is "two billion, one hundred forty-nine million, three hundred sixty-five thousand, eight hundred seventy".