13404792555 has 144 divisors (see below), whose sum is σ = 29578348800. Its totient is φ = 5553313920.

The previous prime is 13404792463. The next prime is 13404792607. The reversal of 13404792555 is 55529740431.

13404792555 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 4 + 7 + 92 + 555 = 666.

Together with 16173556244 it forms a betrothed pair.

It is not a de Polignac number, because 13404792555 - 2²² = 13400598251 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13404792555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 10162186 + ... + 10163504.

It is an arithmetic number, because the mean of its divisors is an integer number (205405200).

Almost surely, 2^13404792555 is an apocalyptic number.

13404792555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13404792555 is an abundant number, since it is smaller than the sum of its proper divisors (16173556245).

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

13404792555 is a wasteful number, since it uses less digits than its factorization.

13404792555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 13404792555 in words is "thirteen billion, four hundred four million, seven hundred ninety-two thousand, five hundred fifty-five".