2152937780 has 48 divisors (see below), whose sum is σ = 5175878400. Its totient is φ = 736889088.

The previous prime is 2152937777. The next prime is 2152937849. The reversal of 2152937780 is 877392512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71024 + ... + 96696.

It is an arithmetic number, because the mean of its divisors is an integer number (107830800).

Almost surely, 2^2152937780 is an apocalyptic number.

2152937780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152937780 is an abundant number, since it is smaller than the sum of its proper divisors (3022940620).

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

2152937780 is a wasteful number, since it uses less digits than its factorization.

2152937780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26288 (or 26286 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 2152937780 is about 46399.7605597270. The cubic root of 2152937780 is about 1291.2504710477.

The spelling of 2152937780 in words is "two billion, one hundred fifty-two million, nine hundred thirty-seven thousand, seven hundred eighty".