54781591359 has 32 divisors (see below), whose sum is σ = 80680045824. Its totient is φ = 32785620480.

The previous prime is 54781591321. The next prime is 54781591373. The reversal of 54781591359 is 95319518745.

It is not a de Polignac number, because 54781591359 - 2⁹ = 54781590847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54781591299 and 54781591308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54781591309) 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, 9071289 + ... + 9077325.

It is an arithmetic number, because the mean of its divisors is an integer number (2521251432).

Almost surely, 2^54781591359 is an apocalyptic number.

54781591359 is a deficient number, since it is larger than the sum of its proper divisors (25898454465).

54781591359 is a wasteful number, since it uses less digits than its factorization.

54781591359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9447.

The product of its digits is 6804000, while the sum is 57.

The spelling of 54781591359 in words is "fifty-four billion, seven hundred eighty-one million, five hundred ninety-one thousand, three hundred fifty-nine".