54684371638 has 16 divisors (see below), whose sum is σ = 89328839040. Its totient is φ = 24955356096.

The previous prime is 54684371629. The next prime is 54684371689. The reversal of 54684371638 is 83617348645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11813670 + ... + 11818297.

It is an arithmetic number, because the mean of its divisors is an integer number (5583052440).

Almost surely, 2^54684371638 is an apocalyptic number.

54684371638 is a deficient number, since it is larger than the sum of its proper divisors (34644467402).

54684371638 is a wasteful number, since it uses less digits than its factorization.

54684371638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23632071.

The product of its digits is 11612160, while the sum is 55.

The spelling of 54684371638 in words is "fifty-four billion, six hundred eighty-four million, three hundred seventy-one thousand, six hundred thirty-eight".