54721317423 has 16 divisors (see below), whose sum is σ = 73870312320. Its totient is φ = 36026951904.

The previous prime is 54721317419. The next prime is 54721317473. The reversal of 54721317423 is 32471312745.

It is not a de Polignac number, because 54721317423 - 2² = 54721317419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54721317473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599565 + ... + 684777.

It is an arithmetic number, because the mean of its divisors is an integer number (4616894520).

Almost surely, 2^54721317423 is an apocalyptic number.

54721317423 is a deficient number, since it is larger than the sum of its proper divisors (19148994897).

54721317423 is a wasteful number, since it uses less digits than its factorization.

54721317423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87878.

The product of its digits is 141120, while the sum is 39.

The spelling of 54721317423 in words is "fifty-four billion, seven hundred twenty-one million, three hundred seventeen thousand, four hundred twenty-three".