312378136263 has 12 divisors (see below), whose sum is σ = 465768117568. Its totient is φ = 201534281280.

The previous prime is 312378136243. The next prime is 312378136289. The reversal of 312378136263 is 362631873213.

312378136263 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 7 + 8 + 13 + 626 + 3 = 666.

It is not a de Polignac number, because 312378136263 - 2¹⁸ = 312377874119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312378136243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559817170 + ... + 559817727.

Almost surely, 2^312378136263 is an apocalyptic number.

312378136263 is a deficient number, since it is larger than the sum of its proper divisors (153389981305).

312378136263 is a wasteful number, since it uses less digits than its factorization.

312378136263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119634934 (or 1119634931 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 312378136263 in words is "three hundred twelve billion, three hundred seventy-eight million, one hundred thirty-six thousand, two hundred sixty-three".