12776526528 has 56 divisors (see below), whose sum is σ = 35793072432. Its totient is φ = 4008321024.

The previous prime is 12776526487. The next prime is 12776526557. The reversal of 12776526528 is 82562567721.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 1953925 + ... + 1960452.

Almost surely, 2^12776526528 is an apocalyptic number.

It is an amenable number.

12776526528 is an abundant number, since it is smaller than the sum of its proper divisors (23016545904).

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

12776526528 is a wasteful number, since it uses less digits than its factorization.

12776526528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914409 (or 3914399 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 51.

The spelling of 12776526528 in words is "twelve billion, seven hundred seventy-six million, five hundred twenty-six thousand, five hundred twenty-eight".