12647806157 has 48 divisors (see below), whose sum is σ = 15631709184. Its totient is φ = 10186848000.

The previous prime is 12647806141. The next prime is 12647806169. The reversal of 12647806157 is 75160874621.

It is not a de Polignac number, because 12647806157 - 2⁴ = 12647806141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647802157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19368443 + ... + 19369095.

It is an arithmetic number, because the mean of its divisors is an integer number (325660608).

Almost surely, 2^12647806157 is an apocalyptic number.

It is an amenable number.

12647806157 is a deficient number, since it is larger than the sum of its proper divisors (2983903027).

12647806157 is a wasteful number, since it uses less digits than its factorization.

12647806157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 12647806157 in words is "twelve billion, six hundred forty-seven million, eight hundred six thousand, one hundred fifty-seven".