54123993655 has 16 divisors (see below), whose sum is σ = 68529592800. Its totient is φ = 40922824320.

The previous prime is 54123993589. The next prime is 54123993673. The reversal of 54123993655 is 55639932145.

It is not a de Polignac number, because 54123993655 - 2²¹ = 54121896503 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636640 + ... + 716629.

It is an arithmetic number, because the mean of its divisors is an integer number (4283099550).

Almost surely, 2^54123993655 is an apocalyptic number.

54123993655 is a deficient number, since it is larger than the sum of its proper divisors (14405599145).

54123993655 is a wasteful number, since it uses less digits than its factorization.

54123993655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353714.

The product of its digits is 4374000, while the sum is 52.

The spelling of 54123993655 in words is "fifty-four billion, one hundred twenty-three million, nine hundred ninety-three thousand, six hundred fifty-five".