54400339638 has 16 divisors (see below), whose sum is σ = 120889643760. Its totient is φ = 18133446528.

The previous prime is 54400339633. The next prime is 54400339639. The reversal of 54400339638 is 83693300445.

54400339638 is a `hidden beast` number, since 5 + 4 + 4 + 0 + 0 + 3 + 3 + 9 + 638 = 666.

54400339638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 54400339593 and 54400339602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54400339633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503706795 + ... + 503706902.

It is an arithmetic number, because the mean of its divisors is an integer number (7555602735).

Almost surely, 2^54400339638 is an apocalyptic number.

54400339638 is an abundant number, since it is smaller than the sum of its proper divisors (66489304122).

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

54400339638 is a wasteful number, since it uses less digits than its factorization.

54400339638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007413708 (or 1007413702 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 54400339638 in words is "fifty-four billion, four hundred million, three hundred thirty-nine thousand, six hundred thirty-eight".