12647890276 has 24 divisors (see below), whose sum is σ = 25353426560. Its totient is φ = 5408171712.

The previous prime is 12647890271. The next prime is 12647890309. The reversal of 12647890276 is 67209874621.

It is not an unprimeable number, because it can be changed into a prime (12647890271) 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, 502185 + ... + 526768.

Almost surely, 2^12647890276 is an apocalyptic number.

It is an amenable number.

12647890276 is an abundant number, since it is smaller than the sum of its proper divisors (12705536284).

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

12647890276 is a wasteful number, since it uses less digits than its factorization.

12647890276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029403 (or 1029401 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 12647890276 in words is "twelve billion, six hundred forty-seven million, eight hundred ninety thousand, two hundred seventy-six".