31296653964 has 60 divisors (see below), whose sum is σ = 81978717744. Its totient is φ = 10411423776.

The previous prime is 31296653917. The next prime is 31296653987. The reversal of 31296653964 is 46935669213.

31296653964 is a `hidden beast` number, since 3 + 12 + 96 + 6 + 539 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 31296653964.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66954 + ... + 258990.

Almost surely, 2^31296653964 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 31296653964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40989358872).

31296653964 is an abundant number, since it is smaller than the sum of its proper divisors (50682063780).

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

31296653964 is a wasteful number, since it uses less digits than its factorization.

31296653964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192556 (or 192545 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The spelling of 31296653964 in words is "thirty-one billion, two hundred ninety-six million, six hundred fifty-three thousand, nine hundred sixty-four".