31612711746 has 256 divisors, whose sum is σ = 84687482880. Its totient is φ = 7620480000.

The previous prime is 31612711733. The next prime is 31612711747. The reversal of 31612711746 is 64711721613.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31612711747) 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 127 ways as a sum of consecutive naturals, for example, 160470520 + ... + 160470716.

It is an arithmetic number, because the mean of its divisors is an integer number (330810480).

Almost surely, 2^31612711746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31612711746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42343741440).

31612711746 is an abundant number, since it is smaller than the sum of its proper divisors (53074771134).

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

31612711746 is a wasteful number, since it uses less digits than its factorization.

31612711746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 42336, while the sum is 39.

The spelling of 31612711746 in words is "thirty-one billion, six hundred twelve million, seven hundred eleven thousand, seven hundred forty-six".