31254134863 has 6 divisors (see below), whose sum is σ = 36356850816. Its totient is φ = 26789258412.

The previous prime is 31254134861. The next prime is 31254134897. The reversal of 31254134863 is 36843145213.

It is a happy number.

It is not a de Polignac number, because 31254134863 - 2¹ = 31254134861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31254134861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 318919695 + ... + 318919792.

It is an arithmetic number, because the mean of its divisors is an integer number (6059475136).

Almost surely, 2^31254134863 is an apocalyptic number.

31254134863 is a deficient number, since it is larger than the sum of its proper divisors (5102715953).

31254134863 is an equidigital number, since it uses as much as digits as its factorization.

31254134863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637839501 (or 637839494 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The spelling of 31254134863 in words is "thirty-one billion, two hundred fifty-four million, one hundred thirty-four thousand, eight hundred sixty-three".