13585346831 has 4 divisors (see below), whose sum is σ = 15526110672. Its totient is φ = 11644582992.

The previous prime is 13585346821. The next prime is 13585346837. The reversal of 13585346831 is 13864358531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13864358531 = 23 ⋅602798197.

It is not a de Polignac number, because 13585346831 - 2²² = 13581152527 is a prime.

It is a super-2 number, since 2×13585346831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13585346837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970381910 + ... + 970381923.

It is an arithmetic number, because the mean of its divisors is an integer number (3881527668).

Almost surely, 2^13585346831 is an apocalyptic number.

13585346831 is a deficient number, since it is larger than the sum of its proper divisors (1940763841).

13585346831 is an equidigital number, since it uses as much as digits as its factorization.

13585346831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940763840.

The product of its digits is 1036800, while the sum is 47.

The spelling of 13585346831 in words is "thirteen billion, five hundred eighty-five million, three hundred forty-six thousand, eight hundred thirty-one".