31747009938 has 24 divisors (see below), whose sum is σ = 73860391152. Its totient is φ = 9070574184.

The previous prime is 31747009913. The next prime is 31747009939. The reversal of 31747009938 is 83990074713.

It is not an unprimeable number, because it can be changed into a prime (31747009939) 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 11 ways as a sum of consecutive naturals, for example, 53991220 + ... + 53991807.

It is an arithmetic number, because the mean of its divisors is an integer number (3077516298).

Almost surely, 2^31747009938 is an apocalyptic number.

31747009938 is an abundant number, since it is smaller than the sum of its proper divisors (42113381214).

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

31747009938 is a wasteful number, since it uses less digits than its factorization.

31747009938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107983046 (or 107983039 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 31747009938 in words is "thirty-one billion, seven hundred forty-seven million, nine thousand, nine hundred thirty-eight".