12808877555 has 16 divisors (see below), whose sum is σ = 15668865504. Its totient is φ = 10048496640.

The previous prime is 12808877533. The next prime is 12808877561. The reversal of 12808877555 is 55577880821.

It is a de Polignac number, because none of the positive numbers 2^k-12808877555 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12808877555.

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, 539852 + ... + 563078.

It is an arithmetic number, because the mean of its divisors is an integer number (979304094).

Almost surely, 2^12808877555 is an apocalyptic number.

12808877555 is a deficient number, since it is larger than the sum of its proper divisors (2859987949).

12808877555 is a wasteful number, since it uses less digits than its factorization.

12808877555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25366.

The product of its (nonzero) digits is 6272000, while the sum is 56.

The spelling of 12808877555 in words is "twelve billion, eight hundred eight million, eight hundred seventy-seven thousand, five hundred fifty-five".