2878791928788 has 24 divisors (see below), whose sum is σ = 6827298892960. Its totient is φ = 943866205920.

The previous prime is 2878791928783. The next prime is 2878791928823. The reversal of 2878791928788 is 8878291978782.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2878791928788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878791928783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966387198 + ... + 1966388661.

Almost surely, 2^{2878791928788} is an apocalyptic number.

It is an amenable number.

2878791928788 is an abundant number, since it is smaller than the sum of its proper divisors (3948506964172).

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

2878791928788 is a wasteful number, since it uses less digits than its factorization.

2878791928788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932775927 (or 3932775925 counting only the distinct ones).

The product of its digits is 3641573376, while the sum is 84.

The spelling of 2878791928788 in words is "two trillion, eight hundred seventy-eight billion, seven hundred ninety-one million, nine hundred twenty-eight thousand, seven hundred eighty-eight".