54771481168 has 40 divisors (see below), whose sum is σ = 108613137600. Its totient is φ = 26742584064.

The previous prime is 54771481139. The next prime is 54771481207. The reversal of 54771481168 is 86118417745.

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, 4513413 + ... + 4525531.

It is an arithmetic number, because the mean of its divisors is an integer number (2715328440).

Almost surely, 2^54771481168 is an apocalyptic number.

It is an amenable number.

54771481168 is a deficient number, since it is larger than the sum of its proper divisors (53841656432).

54771481168 is a wasteful number, since it uses less digits than its factorization.

54771481168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18739 (or 18733 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 52.

The spelling of 54771481168 in words is "fifty-four billion, seven hundred seventy-one million, four hundred eighty-one thousand, one hundred sixty-eight".