312759661642 has 8 divisors (see below), whose sum is σ = 479121183936. Its totient is φ = 153052600332.

The previous prime is 312759661603. The next prime is 312759661699. The reversal of 312759661642 is 246166957213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×312759661642² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312759661642.

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 3 ways as a sum of consecutive naturals, for example, 1663615128 + ... + 1663615315.

It is an arithmetic number, because the mean of its divisors is an integer number (59890147992).

Almost surely, 2^312759661642 is an apocalyptic number.

312759661642 is a deficient number, since it is larger than the sum of its proper divisors (166361522294).

312759661642 is a wasteful number, since it uses less digits than its factorization.

312759661642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327230492.

The product of its digits is 3265920, while the sum is 52.

The spelling of 312759661642 in words is "three hundred twelve billion, seven hundred fifty-nine million, six hundred sixty-one thousand, six hundred forty-two".