312108688650 has 72 divisors (see below), whose sum is σ = 850792858272. Its totient is φ = 75662708000.

The previous prime is 312108688621. The next prime is 312108688657. The reversal of 312108688650 is 56886801213.

It is a self number, because there is not a number n which added to its sum of digits gives 312108688650.

It is not an unprimeable number, because it can be changed into a prime (312108688657) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8579886 + ... + 8616185.

It is an arithmetic number, because the mean of its divisors is an integer number (11816567476).

Almost surely, 2^312108688650 is an apocalyptic number.

312108688650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312108688650 is an abundant number, since it is smaller than the sum of its proper divisors (538684169622).

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

312108688650 is a wasteful number, since it uses less digits than its factorization.

312108688650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17196108 (or 17196092 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 312108688650 in words is "three hundred twelve billion, one hundred eight million, six hundred eighty-eight thousand, six hundred fifty".