13400364765 has 32 divisors (see below), whose sum is σ = 22918484736. Its totient is φ = 6669386240.

The previous prime is 13400364749. The next prime is 13400364773. The reversal of 13400364765 is 56746300431.

It is not a de Polignac number, because 13400364765 - 2⁴ = 13400364749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 459534 + ... + 487823.

It is an arithmetic number, because the mean of its divisors is an integer number (716202648).

Almost surely, 2^13400364765 is an apocalyptic number.

13400364765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13400364765 is a deficient number, since it is larger than the sum of its proper divisors (9518119971).

13400364765 is a wasteful number, since it uses less digits than its factorization.

13400364765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947429.

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 13400364765 in words is "thirteen billion, four hundred million, three hundred sixty-four thousand, seven hundred sixty-five".