54399719543 has 16 divisors (see below), whose sum is σ = 59468774400. Its totient is φ = 49458430560.

The previous prime is 54399719533. The next prime is 54399719557. The reversal of 54399719543 is 34591799345.

It is a cyclic number.

It is not a de Polignac number, because 54399719543 - 2¹⁴ = 54399703159 is a prime.

It is a super-2 number, since 2×54399719543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54399719533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911618 + ... + 969456.

It is an arithmetic number, because the mean of its divisors is an integer number (3716798400).

Almost surely, 2^54399719543 is an apocalyptic number.

54399719543 is a deficient number, since it is larger than the sum of its proper divisors (5069054857).

54399719543 is a wasteful number, since it uses less digits than its factorization.

54399719543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58942.

The product of its digits is 18370800, while the sum is 59.

The spelling of 54399719543 in words is "fifty-four billion, three hundred ninety-nine million, seven hundred nineteen thousand, five hundred forty-three".