31413895884 has 216 divisors, whose sum is σ = 93944869200. Its totient is φ = 8823935232.

The previous prime is 31413895871. The next prime is 31413895921. The reversal of 31413895884 is 48859831413.

It is a super-2 number, since 2×31413895884² (a number of 22 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 31413895884.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28122894 + ... + 28124010.

It is an arithmetic number, because the mean of its divisors is an integer number (434929950).

Almost surely, 2^31413895884 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 31413895884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46972434600).

31413895884 is an abundant number, since it is smaller than the sum of its proper divisors (62530973316).

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

31413895884 is a wasteful number, since it uses less digits than its factorization.

31413895884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1385 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 31413895884 in words is "thirty-one billion, four hundred thirteen million, eight hundred ninety-five thousand, eight hundred eighty-four".