13123478590 has 32 divisors (see below), whose sum is σ = 23700600000. Its totient is φ = 5232016128.

The previous prime is 13123478569. The next prime is 13123478633. The reversal of 13123478590 is 9587432131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4772536 + ... + 4775284.

It is an arithmetic number, because the mean of its divisors is an integer number (740643750).

Almost surely, 2^13123478590 is an apocalyptic number.

13123478590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123478590 is a deficient number, since it is larger than the sum of its proper divisors (10577121410).

13123478590 is a wasteful number, since it uses less digits than its factorization.

13123478590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 13123478590 in words is "thirteen billion, one hundred twenty-three million, four hundred seventy-eight thousand, five hundred ninety".