54698721873 has 4 divisors (see below), whose sum is σ = 72931629168. Its totient is φ = 36465814580.

The previous prime is 54698721829. The next prime is 54698721887. The reversal of 54698721873 is 37812789645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54698721873 - 2⁸ = 54698721617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54698721893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9116453643 + ... + 9116453648.

It is an arithmetic number, because the mean of its divisors is an integer number (18232907292).

Almost surely, 2^54698721873 is an apocalyptic number.

It is an amenable number.

54698721873 is a deficient number, since it is larger than the sum of its proper divisors (18232907295).

54698721873 is a wasteful number, since it uses less digits than its factorization.

54698721873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18232907294.

The product of its digits is 20321280, while the sum is 60.

It can be divided in two parts, 5469872 and 1873, that added together give a palindrome (5471745).

The spelling of 54698721873 in words is "fifty-four billion, six hundred ninety-eight million, seven hundred twenty-one thousand, eight hundred seventy-three".