31515150006 has 40 divisors (see below), whose sum is σ = 70631494560. Its totient is φ = 10502935632.

The previous prime is 31515149993. The next prime is 31515150067. The reversal of 31515150006 is 60005151513.

31515150006 is a `hidden beast` number, since 3 + 1 + 5 + 151 + 500 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 929260 + ... + 962576.

It is an arithmetic number, because the mean of its divisors is an integer number (1765787364).

Almost surely, 2^31515150006 is an apocalyptic number.

31515150006 is an abundant number, since it is smaller than the sum of its proper divisors (39116344554).

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

31515150006 is a wasteful number, since it uses less digits than its factorization.

31515150006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39170 (or 39161 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The spelling of 31515150006 in words is "thirty-one billion, five hundred fifteen million, one hundred fifty thousand, six".