57978192829 has 2 divisors, whose sum is σ = 57978192830. Its totient is φ = 57978192828.

The previous prime is 57978192803. The next prime is 57978192863. The reversal of 57978192829 is 92829187975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46141188025 + 11837004804 = 214805^2 + 108798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57978192829 is a prime.

It is a super-2 number, since 2×57978192829² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57978192869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28989096414 + 28989096415.

It is an arithmetic number, because the mean of its divisors is an integer number (28989096415).

Almost surely, 2^57978192829 is an apocalyptic number.

It is an amenable number.

57978192829 is a deficient number, since it is larger than the sum of its proper divisors (1).

57978192829 is an equidigital number, since it uses as much as digits as its factorization.

57978192829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 67.

The spelling of 57978192829 in words is "fifty-seven billion, nine hundred seventy-eight million, one hundred ninety-two thousand, eight hundred twenty-nine".