2878957791808 has 56 divisors (see below), whose sum is σ = 6652254952512. Its totient is φ = 1210559061504.

The previous prime is 2878957791781. The next prime is 2878957791811. The reversal of 2878957791808 is 8081977598782.

It is a tau number, because it is divible by the number of its divisors (56).

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, 60601210 + ... + 60648697.

Almost surely, 2^{2878957791808} is an apocalyptic number.

2878957791808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2878957791808 is an abundant number, since it is smaller than the sum of its proper divisors (3773297160704).

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

2878957791808 is a wasteful number, since it uses less digits than its factorization.

2878957791808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121249979 (or 121249969 counting only the distinct ones).

The product of its (nonzero) digits is 1137991680, while the sum is 79.

The spelling of 2878957791808 in words is "two trillion, eight hundred seventy-eight billion, nine hundred fifty-seven million, seven hundred ninety-one thousand, eight hundred eight".