13265820375 has 32 divisors (see below), whose sum is σ = 23372826048. Its totient is φ = 6658918400.

The previous prime is 13265820319. The next prime is 13265820401. The reversal of 13265820375 is 57302856231.

It is a happy number.

It is not a de Polignac number, because 13265820375 - 2⁸ = 13265820119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1034082 + ... + 1046831.

It is an arithmetic number, because the mean of its divisors is an integer number (730400814).

Almost surely, 2^13265820375 is an apocalyptic number.

13265820375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13265820375 is a deficient number, since it is larger than the sum of its proper divisors (10107005673).

13265820375 is a wasteful number, since it uses less digits than its factorization.

13265820375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080948 (or 2080938 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 13265820375 in words is "thirteen billion, two hundred sixty-five million, eight hundred twenty thousand, three hundred seventy-five".