31126616253 has 48 divisors (see below), whose sum is σ = 47838248640. Its totient is φ = 20217786624.

The previous prime is 31126616233. The next prime is 31126616267. The reversal of 31126616253 is 35261662113.

31126616253 is a `hidden beast` number, since 3 + 1 + 1 + 26 + 6 + 1 + 625 + 3 = 666.

It is not a de Polignac number, because 31126616253 - 2¹⁶ = 31126550717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31126616233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1610475 + ... + 1629687.

It is an arithmetic number, because the mean of its divisors is an integer number (996630180).

Almost surely, 2^31126616253 is an apocalyptic number.

It is an amenable number.

31126616253 is a deficient number, since it is larger than the sum of its proper divisors (16711632387).

31126616253 is a wasteful number, since it uses less digits than its factorization.

31126616253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19400 (or 19388 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The spelling of 31126616253 in words is "thirty-one billion, one hundred twenty-six million, six hundred sixteen thousand, two hundred fifty-three".