13232720775 has 24 divisors (see below), whose sum is σ = 21949400704. Its totient is φ = 7034450400.

The previous prime is 13232720749. The next prime is 13232720827. The reversal of 13232720775 is 57702723231.

It is a happy number.

It is not a de Polignac number, because 13232720775 - 2⁸ = 13232720519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264331 + ... + 310380.

Almost surely, 2^13232720775 is an apocalyptic number.

13232720775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13232720775 is a deficient number, since it is larger than the sum of its proper divisors (8716679929).

13232720775 is a wasteful number, since it uses less digits than its factorization.

13232720775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575031 (or 575026 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 39.

The spelling of 13232720775 in words is "thirteen billion, two hundred thirty-two million, seven hundred twenty thousand, seven hundred seventy-five".