312640047854 has 16 divisors (see below), whose sum is σ = 484264176000. Its totient is φ = 151222330080.

The previous prime is 312640047847. The next prime is 312640047877. The reversal of 312640047854 is 458740046213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746729 + ... + 1087604.

It is an arithmetic number, because the mean of its divisors is an integer number (30266511000).

Almost surely, 2^312640047854 is an apocalyptic number.

312640047854 is a deficient number, since it is larger than the sum of its proper divisors (171624128146).

312640047854 is a wasteful number, since it uses less digits than its factorization.

312640047854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837115.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 312640047854 in words is "three hundred twelve billion, six hundred forty million, forty-seven thousand, eight hundred fifty-four".