31506319674 has 24 divisors (see below), whose sum is σ = 72279204660. Its totient is φ = 9884335488.

The previous prime is 31506319627. The next prime is 31506319681. The reversal of 31506319674 is 47691360513.

It is a happy number.

31506319674 is a `hidden beast` number, since 3 + 1 + 5 + 0 + 631 + 9 + 6 + 7 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23713844049 + 7792475625 = 153993^2 + 88275^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 51480609 + ... + 51481220.

Almost surely, 2^31506319674 is an apocalyptic number.

31506319674 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31506319674 is an abundant number, since it is smaller than the sum of its proper divisors (40772884986).

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

31506319674 is a wasteful number, since it uses less digits than its factorization.

31506319674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102961854 (or 102961851 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 31506319674 in words is "thirty-one billion, five hundred six million, three hundred nineteen thousand, six hundred seventy-four".