312732618268 has 36 divisors (see below), whose sum is σ = 647424693720. Its totient is φ = 131756594592.

The previous prime is 312732618259. The next prime is 312732618271. The reversal of 312732618268 is 862816237213.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13510255 + ... + 13533382.

It is an arithmetic number, because the mean of its divisors is an integer number (17984019270).

Almost surely, 2^312732618268 is an apocalyptic number.

It is an amenable number.

312732618268 is an abundant number, since it is smaller than the sum of its proper divisors (334692075452).

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

312732618268 is a wasteful number, since it uses less digits than its factorization.

312732618268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27043714 (or 27043705 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The spelling of 312732618268 in words is "three hundred twelve billion, seven hundred thirty-two million, six hundred eighteen thousand, two hundred sixty-eight".