57786147979 has 16 divisors (see below), whose sum is σ = 66745092096. Its totient is φ = 49003884000.

The previous prime is 57786147967. The next prime is 57786148067. The reversal of 57786147979 is 97974168775.

It is a cyclic number.

It is not a de Polignac number, because 57786147979 - 2¹⁷ = 57786016907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57786147919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936574 + ... + 996364.

It is an arithmetic number, because the mean of its divisors is an integer number (4171568256).

Almost surely, 2^57786147979 is an apocalyptic number.

57786147979 is a deficient number, since it is larger than the sum of its proper divisors (8958944117).

57786147979 is a wasteful number, since it uses less digits than its factorization.

57786147979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61266.

The product of its digits is 186701760, while the sum is 70.

The spelling of 57786147979 in words is "fifty-seven billion, seven hundred eighty-six million, one hundred forty-seven thousand, nine hundred seventy-nine".