12312500775 has 48 divisors (see below), whose sum is σ = 20854284288. Its totient is φ = 6407856000.

The previous prime is 12312500771. The next prime is 12312500779. The reversal of 12312500775 is 57700521321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12312500771) and next prime (12312500779).

It is not a de Polignac number, because 12312500775 - 2² = 12312500771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312500771) 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, 570430 + ... + 591620.

It is an arithmetic number, because the mean of its divisors is an integer number (434464256).

Almost surely, 2^12312500775 is an apocalyptic number.

12312500775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12312500775 is a deficient number, since it is larger than the sum of its proper divisors (8541783513).

12312500775 is a wasteful number, since it uses less digits than its factorization.

12312500775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21392 (or 21387 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The spelling of 12312500775 in words is "twelve billion, three hundred twelve million, five hundred thousand, seven hundred seventy-five".