31534650054 has 128 divisors (see below), whose sum is σ = 73418688000. Its totient is φ = 10020495744.

The previous prime is 31534650031. The next prime is 31534650061. The reversal of 31534650054 is 45005643513.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60295437 + ... + 60295959.

It is an arithmetic number, because the mean of its divisors is an integer number (573583500).

Almost surely, 2^31534650054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31534650054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36709344000).

31534650054 is an abundant number, since it is smaller than the sum of its proper divisors (41884037946).

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

31534650054 is a wasteful number, since it uses less digits than its factorization.

31534650054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 31534650054 in words is "thirty-one billion, five hundred thirty-four million, six hundred fifty thousand, fifty-four".