31254822648 has 160 divisors (see below), whose sum is σ = 100169704800. Its totient is φ = 8919134208.

The previous prime is 31254822637. The next prime is 31254822653. The reversal of 31254822648 is 84622845213.

31254822648 is a `hidden beast` number, since 3 + 125 + 482 + 2 + 6 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4210236 + ... + 4217652.

It is an arithmetic number, because the mean of its divisors is an integer number (626060655).

Almost surely, 2^31254822648 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 31254822648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50084852400).

31254822648 is an abundant number, since it is smaller than the sum of its proper divisors (68914882152).

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

31254822648 is a wasteful number, since it uses less digits than its factorization.

31254822648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8371 (or 8358 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 31254822648 in words is "thirty-one billion, two hundred fifty-four million, eight hundred twenty-two thousand, six hundred forty-eight".