2791256382 has 16 divisors (see below), whose sum is σ = 6202792080. Its totient is φ = 930418776.

The previous prime is 2791256327. The next prime is 2791256407. The reversal of 2791256382 is 2836521972.

2791256382 is a `hidden beast` number, since 2 + 7 + 9 + 1 + 2 + 5 + 638 + 2 = 666.

It is a super-2 number, since 2×2791256382² = 15582224380111459848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25844913 + ... + 25845020.

It is an arithmetic number, because the mean of its divisors is an integer number (387674505).

Almost surely, 2^2791256382 is an apocalyptic number.

2791256382 is an abundant number, since it is smaller than the sum of its proper divisors (3411535698).

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

2791256382 is a wasteful number, since it uses less digits than its factorization.

2791256382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51689944 (or 51689938 counting only the distinct ones).

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

The square root of 2791256382 is about 52832.3421968021. The cubic root of 2791256382 is about 1407.9911002445.

The spelling of 2791256382 in words is "two billion, seven hundred ninety-one million, two hundred fifty-six thousand, three hundred eighty-two".