57729389979 has 16 divisors (see below), whose sum is σ = 79485190400. Its totient is φ = 37246347936.

The previous prime is 57729389957. The next prime is 57729389981. The reversal of 57729389979 is 97998392775.

It is not a de Polignac number, because 57729389979 - 2²¹ = 57727292827 is a prime.

It is a super-3 number, since 3×57729389979³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57729389979.

It is not an unprimeable number, because it can be changed into a prime (57729389999) 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 15 ways as a sum of consecutive naturals, for example, 2038759 + ... + 2066880.

It is an arithmetic number, because the mean of its divisors is an integer number (4967824400).

Almost surely, 2^57729389979 is an apocalyptic number.

57729389979 is a deficient number, since it is larger than the sum of its proper divisors (21755800421).

57729389979 is a wasteful number, since it uses less digits than its factorization.

57729389979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105794.

The product of its digits is 540101520, while the sum is 75.

The spelling of 57729389979 in words is "fifty-seven billion, seven hundred twenty-nine million, three hundred eighty-nine thousand, nine hundred seventy-nine".