54638883644 has 48 divisors (see below), whose sum is σ = 100687826400. Its totient is φ = 25906003200.

The previous prime is 54638883617. The next prime is 54638883667. The reversal of 54638883644 is 44638883645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5011439 + ... + 5022329.

It is an arithmetic number, because the mean of its divisors is an integer number (2097663050).

Almost surely, 2^54638883644 is an apocalyptic number.

It is an amenable number.

54638883644 is a deficient number, since it is larger than the sum of its proper divisors (46048942756).

54638883644 is a wasteful number, since it uses less digits than its factorization.

54638883644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694 (or 11692 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 59.

Subtracting from 54638883644 its reverse (44638883645), we obtain a palindrome (9999999999).

The spelling of 54638883644 in words is "fifty-four billion, six hundred thirty-eight million, eight hundred eighty-three thousand, six hundred forty-four".