31385858413 has 32 divisors (see below), whose sum is σ = 39223296000. Its totient is φ = 24452266176.

The previous prime is 31385858347. The next prime is 31385858423. The reversal of 31385858413 is 31485858313.

It is not a de Polignac number, because 31385858413 - 2¹⁷ = 31385727341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31385858423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2747688 + ... + 2759086.

It is an arithmetic number, because the mean of its divisors is an integer number (1225728000).

Almost surely, 2^31385858413 is an apocalyptic number.

It is an amenable number.

31385858413 is a deficient number, since it is larger than the sum of its proper divisors (7837437587).

31385858413 is a wasteful number, since it uses less digits than its factorization.

31385858413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881.

The product of its digits is 1382400, while the sum is 49.

The spelling of 31385858413 in words is "thirty-one billion, three hundred eighty-five million, eight hundred fifty-eight thousand, four hundred thirteen".