54355831686 has 24 divisors (see below), whose sum is σ = 126830274480. Its totient is φ = 16724871216.

The previous prime is 54355831669. The next prime is 54355831709. The reversal of 54355831686 is 68613855345.

It is a happy number.

54355831686 is a `hidden beast` number, since 5 + 4 + 3 + 558 + 3 + 1 + 6 + 86 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 116144706 + ... + 116145173.

It is an arithmetic number, because the mean of its divisors is an integer number (5284594770).

Almost surely, 2^54355831686 is an apocalyptic number.

54355831686 is an abundant number, since it is smaller than the sum of its proper divisors (72474442794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54355831686 is a wasteful number, since it uses less digits than its factorization.

54355831686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232289900 (or 232289897 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 54355831686 in words is "fifty-four billion, three hundred fifty-five million, eight hundred thirty-one thousand, six hundred eighty-six".