12402572556 has 24 divisors (see below), whose sum is σ = 31570185024. Its totient is φ = 3758355280.

The previous prime is 12402572519. The next prime is 12402572557. The reversal of 12402572556 is 65527520421.

It is not an unprimeable number, because it can be changed into a prime (12402572557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46979310 + ... + 46979573.

It is an arithmetic number, because the mean of its divisors is an integer number (1315424376).

Almost surely, 2^12402572556 is an apocalyptic number.

It is an amenable number.

12402572556 is an abundant number, since it is smaller than the sum of its proper divisors (19167612468).

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

12402572556 is a wasteful number, since it uses less digits than its factorization.

12402572556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93958901 (or 93958899 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 12402572556 in words is "twelve billion, four hundred two million, five hundred seventy-two thousand, five hundred fifty-six".