12647076440 has 16 divisors (see below), whose sum is σ = 28455922080. Its totient is φ = 5058830560.

The previous prime is 12647076413. The next prime is 12647076443. The reversal of 12647076440 is 4467074621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647076443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158088416 + ... + 158088495.

It is an arithmetic number, because the mean of its divisors is an integer number (1778495130).

Almost surely, 2^12647076440 is an apocalyptic number.

12647076440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12647076440 is an abundant number, since it is smaller than the sum of its proper divisors (15808845640).

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

12647076440 is a wasteful number, since it uses less digits than its factorization.

12647076440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316176922 (or 316176918 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 12647076440 in words is "twelve billion, six hundred forty-seven million, seventy-six thousand, four hundred forty".