54187726439 has 32 divisors (see below), whose sum is σ = 71777318400. Its totient is φ = 39666291840.

The previous prime is 54187726429. The next prime is 54187726441. The reversal of 54187726439 is 93462778145.

It is a de Polignac number, because none of the positive numbers 2^k-54187726439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54187726409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245309 + ... + 410550.

It is an arithmetic number, because the mean of its divisors is an integer number (2243041200).

Almost surely, 2^54187726439 is an apocalyptic number.

54187726439 is a deficient number, since it is larger than the sum of its proper divisors (17589591961).

54187726439 is a wasteful number, since it uses less digits than its factorization.

54187726439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655943.

The product of its digits is 10160640, while the sum is 56.

The spelling of 54187726439 in words is "fifty-four billion, one hundred eighty-seven million, seven hundred twenty-six thousand, four hundred thirty-nine".