2187737046 has 128 divisors (see below), whose sum is σ = 5607014400. Its totient is φ = 625790880.

The previous prime is 2187737039. The next prime is 2187737077. The reversal of 2187737046 is 6407377812.

2187737046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2187737046² = 9572386764881612232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2187736992 and 2187737010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1078285 + ... + 1080311.

It is an arithmetic number, because the mean of its divisors is an integer number (43804800).

Almost surely, 2^2187737046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187737046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2803507200).

2187737046 is an abundant number, since it is smaller than the sum of its proper divisors (3419277354).

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

2187737046 is a wasteful number, since it uses less digits than its factorization.

2187737046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2145 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 2187737046 is about 46773.2513943600. The cubic root of 2187737046 is about 1298.1704136723.

The spelling of 2187737046 in words is "two billion, one hundred eighty-seven million, seven hundred thirty-seven thousand, forty-six".