31336614642 has 16 divisors (see below), whose sum is σ = 63428329440. Its totient is φ = 10319688192.

The previous prime is 31336614623. The next prime is 31336614643. The reversal of 31336614642 is 24641663313.

It is a self number, because there is not a number n which added to its sum of digits gives 31336614642.

It is not an unprimeable number, because it can be changed into a prime (31336614643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31461967 + ... + 31462962.

It is an arithmetic number, because the mean of its divisors is an integer number (3964270590).

Almost surely, 2^31336614642 is an apocalyptic number.

31336614642 is an abundant number, since it is smaller than the sum of its proper divisors (32091714798).

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

31336614642 is a wasteful number, since it uses less digits than its factorization.

31336614642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62925017.

The product of its digits is 186624, while the sum is 39.

The spelling of 31336614642 in words is "thirty-one billion, three hundred thirty-six million, six hundred fourteen thousand, six hundred forty-two".