54117749457 has 32 divisors (see below), whose sum is σ = 84744528000. Its totient is φ = 34037729280.

The previous prime is 54117749417. The next prime is 54117749461. The reversal of 54117749457 is 75494771145.

54117749457 is a `hidden beast` number, since 5 + 4 + 117 + 74 + 9 + 457 = 666.

54117749457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54117749457 - 2³⁵ = 19758011089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54117749417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95232 + ... + 342497.

It is an arithmetic number, because the mean of its divisors is an integer number (2648266500).

Almost surely, 2^54117749457 is an apocalyptic number.

54117749457 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

54117749457 is a deficient number, since it is larger than the sum of its proper divisors (30626778543).

54117749457 is a wasteful number, since it uses less digits than its factorization.

54117749457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437998 (or 437992 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The spelling of 54117749457 in words is "fifty-four billion, one hundred seventeen million, seven hundred forty-nine thousand, four hundred fifty-seven".