2696978738880 has 112 divisors (see below), whose sum is σ = 9514341692640. Its totient is φ = 719194328064.

The previous prime is 2696978738869. The next prime is 2696978738939. The reversal of 2696978738880 is 888378796962.

2696978738880 is a `hidden beast` number, since 2 + 6 + 96 + 9 + 78 + 7 + 388 + 80 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2696978738880.

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, 156066519 + ... + 156083798.

Almost surely, 2^{2696978738880} is an apocalyptic number.

2696978738880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2696978738880 is an abundant number, since it is smaller than the sum of its proper divisors (6817362953760).

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

2696978738880 is a wasteful number, since it uses less digits than its factorization.

2696978738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312150343 (or 312150327 counting only the distinct ones).

The product of its (nonzero) digits is 3511517184, while the sum is 81.

The spelling of 2696978738880 in words is "two trillion, six hundred ninety-six billion, nine hundred seventy-eight million, seven hundred thirty-eight thousand, eight hundred eighty".