312994008385 has 8 divisors (see below), whose sum is σ = 375918569640. Its totient is φ = 250178033664.

The previous prime is 312994008347. The next prime is 312994008401. The reversal of 312994008385 is 583800499213.

It can be written as a sum of positive squares in 4 ways, for example, as 26623469889 + 286370538496 = 163167^2 + 535136^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 312994008385 - 2²³ = 312985619777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27140290 + ... + 27151819.

It is an arithmetic number, because the mean of its divisors is an integer number (46989821205).

Almost surely, 2^312994008385 is an apocalyptic number.

It is an amenable number.

312994008385 is a deficient number, since it is larger than the sum of its proper divisors (62924561255).

312994008385 is a wasteful number, since it uses less digits than its factorization.

312994008385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54293267.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 312994008385 in words is "three hundred twelve billion, nine hundred ninety-four million, eight thousand, three hundred eighty-five".