13263226520 has 32 divisors (see below), whose sum is σ = 29908764000. Its totient is φ = 5293467648.

The previous prime is 13263226519. The next prime is 13263226541. The reversal of 13263226520 is 2562236231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351284 + ... + 387203.

It is an arithmetic number, because the mean of its divisors is an integer number (934648875).

Almost surely, 2^13263226520 is an apocalyptic number.

13263226520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13263226520 is an abundant number, since it is smaller than the sum of its proper divisors (16645537480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13263226520 is a wasteful number, since it uses less digits than its factorization.

13263226520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738947 (or 738943 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 13263226520 in words is "thirteen billion, two hundred sixty-three million, two hundred twenty-six thousand, five hundred twenty".