57168978 has 8 divisors (see below), whose sum is σ = 114337968. Its totient is φ = 19056324.

The previous prime is 57168941. The next prime is 57168997. The reversal of 57168978 is 87986175.

It is a sphenic number, since it is the product of 3 distinct primes.

57168978 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57168978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4764076 + ... + 4764087.

It is an arithmetic number, because the mean of its divisors is an integer number (14292246).

Almost surely, 2^57168978 is an apocalyptic number.

57168978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57168978 is a wasteful number, since it uses less digits than its factorization.

57168978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9528168.

The product of its digits is 846720, while the sum is 51.

The square root of 57168978 is about 7561.0169950874. The cubic root of 57168978 is about 385.2300373722.

The spelling of 57168978 in words is "fifty-seven million, one hundred sixty-eight thousand, nine hundred seventy-eight".