31504002345552 has 160 divisors (see below), whose sum is σ = 93520425738240. Its totient is φ = 9038058624000.

The previous prime is 31504002345547. The next prime is 31504002345581. The reversal of 31504002345552 is 25554320040513.

It is a super-2 number, since 2×31504002345552² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31504002345552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13689652 + ... + 15824492.

It is an arithmetic number, because the mean of its divisors is an integer number (584502660864).

Almost surely, 2^{31504002345552} 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 31504002345552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46760212869120).

31504002345552 is an abundant number, since it is smaller than the sum of its proper divisors (62016423392688).

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

31504002345552 is a wasteful number, since it uses less digits than its factorization.

31504002345552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136353 (or 2136347 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 31504002345552 in words is "thirty-one trillion, five hundred four billion, two million, three hundred forty-five thousand, five hundred fifty-two".