12550782756 has 24 divisors (see below), whose sum is σ = 29287700064. Its totient is φ = 4183231360.

The previous prime is 12550782743. The next prime is 12550782779. The reversal of 12550782756 is 65728705521.

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, 124051 + ... + 201221.

It is an arithmetic number, because the mean of its divisors is an integer number (1220320836).

Almost surely, 2^12550782756 is an apocalyptic number.

It is an amenable number.

12550782756 is an abundant number, since it is smaller than the sum of its proper divisors (16736917308).

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

12550782756 is a wasteful number, since it uses less digits than its factorization.

12550782756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90731 (or 90729 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 12550782756 in words is "twelve billion, five hundred fifty million, seven hundred eighty-two thousand, seven hundred fifty-six".