31742907884 has 12 divisors (see below), whose sum is σ = 55551933864. Its totient is φ = 15870926784.

The previous prime is 31742907811. The next prime is 31742907887. The reversal of 31742907884 is 48870924713.

It is a super-2 number, since 2×31742907884² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31742907887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24212 + ... + 253124.

It is an arithmetic number, because the mean of its divisors is an integer number (4629327822).

Almost surely, 2^31742907884 is an apocalyptic number.

It is an amenable number.

31742907884 is a deficient number, since it is larger than the sum of its proper divisors (23809025980).

31742907884 is a wasteful number, since it uses less digits than its factorization.

31742907884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263584 (or 263582 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 31742907884 in words is "thirty-one billion, seven hundred forty-two million, nine hundred seven thousand, eight hundred eighty-four".