31371286068 has 30 divisors (see below), whose sum is σ = 82010739426. Its totient is φ = 10457095248.

The previous prime is 31371286049. The next prime is 31371286139. The reversal of 31371286068 is 86068217313.

31371286068 is a `hidden beast` number, since 3 + 1 + 37 + 1 + 2 + 8 + 606 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30730791204 + 640494864 = 175302^2 + 25308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 48412155 + ... + 48412802.

Almost surely, 2^31371286068 is an apocalyptic number.

It is an amenable number.

31371286068 is an abundant number, since it is smaller than the sum of its proper divisors (50639453358).

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

31371286068 is a wasteful number, since it uses less digits than its factorization.

31371286068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96824973 (or 96824962 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 31371286068 in words is "thirty-one billion, three hundred seventy-one million, two hundred eighty-six thousand, sixty-eight".