312670988517889 has 4 divisors (see below), whose sum is σ = 329127356334640. Its totient is φ = 296214620701140.

The previous prime is 312670988517883. The next prime is 312670988517893. The reversal of 312670988517889 is 988715889076213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312670988517889 - 2⁵ = 312670988517857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312670988517883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8228183908347 + ... + 8228183908384.

It is an arithmetic number, because the mean of its divisors is an integer number (82281839083660).

Almost surely, 2^{312670988517889} is an apocalyptic number.

It is an amenable number.

312670988517889 is a deficient number, since it is larger than the sum of its proper divisors (16456367816751).

312670988517889 is a wasteful number, since it uses less digits than its factorization.

312670988517889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16456367816750.

The product of its (nonzero) digits is 2926264320, while the sum is 82.

The spelling of 312670988517889 in words is "three hundred twelve trillion, six hundred seventy billion, nine hundred eighty-eight million, five hundred seventeen thousand, eight hundred eighty-nine".