31362774642 has 32 divisors (see below), whose sum is σ = 69708380160. Its totient is φ = 10452259440.

The previous prime is 31362774629. The next prime is 31362774647. The reversal of 31362774642 is 24647726313.

31362774642 is a `hidden beast` number, since 3 + 13 + 627 + 7 + 4 + 6 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (31362774647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244392 + ... + 349932.

It is an arithmetic number, because the mean of its divisors is an integer number (2178386880).

Almost surely, 2^31362774642 is an apocalyptic number.

31362774642 is an abundant number, since it is smaller than the sum of its proper divisors (38345605518).

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

31362774642 is a wasteful number, since it uses less digits than its factorization.

31362774642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111055 (or 111049 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The spelling of 31362774642 in words is "thirty-one billion, three hundred sixty-two million, seven hundred seventy-four thousand, six hundred forty-two".