54691730727 has 12 divisors (see below), whose sum is σ = 77464182696. Its totient is φ = 34316379520.

The previous prime is 54691730713. The next prime is 54691730729. The reversal of 54691730727 is 72703719645.

It is a happy number.

It is not a de Polignac number, because 54691730727 - 2⁴ = 54691730711 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 54691730727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54691730729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31539924 + ... + 31541657.

It is an arithmetic number, because the mean of its divisors is an integer number (6455348558).

Almost surely, 2^54691730727 is an apocalyptic number.

54691730727 is a deficient number, since it is larger than the sum of its proper divisors (22772451969).

54691730727 is a wasteful number, since it uses less digits than its factorization.

54691730727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63081618 (or 63081601 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 54691730727 in words is "fifty-four billion, six hundred ninety-one million, seven hundred thirty thousand, seven hundred twenty-seven".