31352642104 has 64 divisors (see below), whose sum is σ = 68171120640. Its totient is φ = 13239832320.

The previous prime is 31352642093. The next prime is 31352642107. The reversal of 31352642104 is 40124625313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31352642107) 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 15 ways as a sum of consecutive naturals, for example, 4996489 + ... + 5002759.

It is an arithmetic number, because the mean of its divisors is an integer number (1065173760).

Almost surely, 2^31352642104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31352642104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34085560320).

31352642104 is an abundant number, since it is smaller than the sum of its proper divisors (36818478536).

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

31352642104 is a wasteful number, since it uses less digits than its factorization.

31352642104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7580 (or 7576 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 31352642104 in words is "thirty-one billion, three hundred fifty-two million, six hundred forty-two thousand, one hundred four".