12577321860 has 48 divisors (see below), whose sum is σ = 36352522752. Its totient is φ = 3245760000.

The previous prime is 12577321859. The next prime is 12577321907. The reversal of 12577321860 is 6812377521.

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, 3379141 + ... + 3382860.

It is an arithmetic number, because the mean of its divisors is an integer number (757344224).

Almost surely, 2^12577321860 is an apocalyptic number.

12577321860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12577321860 is an abundant number, since it is smaller than the sum of its proper divisors (23775200892).

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

12577321860 is a wasteful number, since it uses less digits than its factorization.

12577321860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762044 (or 6762042 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 12577321860 in words is "twelve billion, five hundred seventy-seven million, three hundred twenty-one thousand, eight hundred sixty".