12640276375 has 32 divisors (see below), whose sum is σ = 15900131520. Its totient is φ = 10032419200.

The previous prime is 12640276333. The next prime is 12640276379. The reversal of 12640276375 is 57367204621.

It is not a de Polignac number, because 12640276375 - 2⁷ = 12640276247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12640276379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9851484 + ... + 9852766.

It is an arithmetic number, because the mean of its divisors is an integer number (496879110).

Almost surely, 2^12640276375 is an apocalyptic number.

12640276375 is a deficient number, since it is larger than the sum of its proper divisors (3259855145).

12640276375 is a wasteful number, since it uses less digits than its factorization.

12640276375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 12640276375 in words is "twelve billion, six hundred forty million, two hundred seventy-six thousand, three hundred seventy-five".