31441627136 has 48 divisors (see below), whose sum is σ = 63327356820. Its totient is φ = 15605923840.

The previous prime is 31441627099. The next prime is 31441627153. The reversal of 31441627136 is 63172614413.

It can be written as a sum of positive squares in 2 ways, for example, as 28927206400 + 2514420736 = 170080^2 + 50144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31441627136.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224546 + ... + 336606.

Almost surely, 2^31441627136 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 31441627136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31663678410).

31441627136 is an abundant number, since it is smaller than the sum of its proper divisors (31885729684).

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

31441627136 is a wasteful number, since it uses less digits than its factorization.

31441627136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112220 (or 112200 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The spelling of 31441627136 in words is "thirty-one billion, four hundred forty-one million, six hundred twenty-seven thousand, one hundred thirty-six".