312885371340 has 72 divisors (see below), whose sum is σ = 949369843968. Its totient is φ = 83411112960.

The previous prime is 312885371291. The next prime is 312885371387. The reversal of 312885371340 is 43173588213.

312885371340 is a `hidden beast` number, since 3 + 1 + 2 + 88 + 537 + 1 + 34 + 0 = 666.

312885371340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346389 + ... + 863571.

Almost surely, 2^312885371340 is an apocalyptic number.

312885371340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312885371340 is an abundant number, since it is smaller than the sum of its proper divisors (636484472628).

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

312885371340 is a wasteful number, since it uses less digits than its factorization.

312885371340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520559 (or 520554 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 312885371340 in words is "three hundred twelve billion, eight hundred eighty-five million, three hundred seventy-one thousand, three hundred forty".