54123974565 has 16 divisors (see below), whose sum is σ = 86627192256. Its totient is φ = 28856508800.

The previous prime is 54123974561. The next prime is 54123974573. The reversal of 54123974565 is 56547932145.

It is not a de Polignac number, because 54123974565 - 2² = 54123974561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54123974561) by changing a digit.

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, 554016 + ... + 644345.

It is an arithmetic number, because the mean of its divisors is an integer number (5414199516).

Almost surely, 2^54123974565 is an apocalyptic number.

It is an amenable number.

54123974565 is a deficient number, since it is larger than the sum of its proper divisors (32503217691).

54123974565 is a wasteful number, since it uses less digits than its factorization.

54123974565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201380.

The product of its digits is 4536000, while the sum is 51.

The spelling of 54123974565 in words is "fifty-four billion, one hundred twenty-three million, nine hundred seventy-four thousand, five hundred sixty-five".