13200428956 has 96 divisors (see below), whose sum is σ = 27687744000. Its totient is φ = 5427352320.

The previous prime is 13200428953. The next prime is 13200428963. The reversal of 13200428956 is 65982400231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13200428951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20214726 + ... + 20215378.

It is an arithmetic number, because the mean of its divisors is an integer number (288414000).

Almost surely, 2^13200428956 is an apocalyptic number.

It is an amenable number.

13200428956 is an abundant number, since it is smaller than the sum of its proper divisors (14487315044).

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

13200428956 is a wasteful number, since it uses less digits than its factorization.

13200428956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 13200428956 in words is "thirteen billion, two hundred million, four hundred twenty-eight thousand, nine hundred fifty-six".