54707481639 has 12 divisors (see below), whose sum is σ = 79051626576. Its totient is φ = 36457942752.

The previous prime is 54707481613. The next prime is 54707481649. The reversal of 54707481639 is 93618470745.

54707481639 is a `hidden beast` number, since 5 + 470 + 7 + 4 + 8 + 163 + 9 = 666.

It is not a de Polignac number, because 54707481639 - 2⁷ = 54707481511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54707481649) 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, 1117342 + ... + 1165275.

It is an arithmetic number, because the mean of its divisors is an integer number (6587635548).

Almost surely, 2^54707481639 is an apocalyptic number.

54707481639 is a deficient number, since it is larger than the sum of its proper divisors (24344144937).

54707481639 is a wasteful number, since it uses less digits than its factorization.

54707481639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285286 (or 2285283 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 54707481639 in words is "fifty-four billion, seven hundred seven million, four hundred eighty-one thousand, six hundred thirty-nine".