687835313274 has 64 divisors (see below), whose sum is σ = 1429685856000. Its totient is φ = 220426956288.

The previous prime is 687835313261. The next prime is 687835313279. The reversal of 687835313274 is 472313538786.

It is not an unprimeable number, because it can be changed into a prime (687835313279) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 31542627 + ... + 31564425.

It is an arithmetic number, because the mean of its divisors is an integer number (22338841500).

Almost surely, 2^687835313274 is an apocalyptic number.

687835313274 is an abundant number, since it is smaller than the sum of its proper divisors (741850542726).

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

687835313274 is a wasteful number, since it uses less digits than its factorization.

687835313274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23527.

The product of its digits is 20321280, while the sum is 57.

The spelling of 687835313274 in words is "six hundred eighty-seven billion, eight hundred thirty-five million, three hundred thirteen thousand, two hundred seventy-four".