54169777905957 has 40 divisors (see below), whose sum is σ = 92563120871936. Its totient is φ = 30926446571808.

The previous prime is 54169777905941. The next prime is 54169777905979. The reversal of 54169777905957 is 75950977796145.

54169777905957 is a `hidden beast` number, since 5 + 4 + 16 + 9 + 7 + 7 + 7 + 9 + 0 + 595 + 7 = 666.

It is not a de Polignac number, because 54169777905957 - 2⁴ = 54169777905941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54169777905457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42131893 + ... + 43398570.

Almost surely, 2^{54169777905957} is an apocalyptic number.

It is an amenable number.

54169777905957 is a deficient number, since it is larger than the sum of its proper divisors (38393342965979).

54169777905957 is a wasteful number, since it uses less digits than its factorization.

54169777905957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85531599 (or 85531590 counting only the distinct ones).

The product of its (nonzero) digits is 5250987000, while the sum is 81.

The spelling of 54169777905957 in words is "fifty-four trillion, one hundred sixty-nine billion, seven hundred seventy-seven million, nine hundred five thousand, nine hundred fifty-seven".