57093587978 has 8 divisors (see below), whose sum is σ = 97874722272. Its totient is φ = 24468680556.

The previous prime is 57093587963. The next prime is 57093587981. The reversal of 57093587978 is 87978539075.

It is a happy number.

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

It is a super-2 number, since 2×57093587978² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039056700 + ... + 2039056727.

It is an arithmetic number, because the mean of its divisors is an integer number (12234340284).

Almost surely, 2^57093587978 is an apocalyptic number.

57093587978 is a deficient number, since it is larger than the sum of its proper divisors (40781134294).

57093587978 is a wasteful number, since it uses less digits than its factorization.

57093587978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078113436.

The product of its (nonzero) digits is 133358400, while the sum is 68.

The spelling of 57093587978 in words is "fifty-seven billion, ninety-three million, five hundred eighty-seven thousand, nine hundred seventy-eight".