12647251580 has 24 divisors (see below), whose sum is σ = 27957083280. Its totient is φ = 4792642560.

The previous prime is 12647251577. The next prime is 12647251597. The reversal of 12647251580 is 8515274621.

It is a congruent number.

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, 16640741 + ... + 16641500.

It is an arithmetic number, because the mean of its divisors is an integer number (1164878470).

Almost surely, 2^12647251580 is an apocalyptic number.

12647251580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12647251580 is an abundant number, since it is smaller than the sum of its proper divisors (15309831700).

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

12647251580 is a wasteful number, since it uses less digits than its factorization.

12647251580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33282269 (or 33282267 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 12647251580 in words is "twelve billion, six hundred forty-seven million, two hundred fifty-one thousand, five hundred eighty".