57658369693 has 2 divisors, whose sum is σ = 57658369694. Its totient is φ = 57658369692.

The previous prime is 57658369669. The next prime is 57658369711. The reversal of 57658369693 is 39696385675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49616226009 + 8042143684 = 222747^2 + 89678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57658369693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57658369193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28829184846 + 28829184847.

It is an arithmetic number, because the mean of its divisors is an integer number (28829184847).

Almost surely, 2^57658369693 is an apocalyptic number.

It is an amenable number.

57658369693 is a deficient number, since it is larger than the sum of its proper divisors (1).

57658369693 is an equidigital number, since it uses as much as digits as its factorization.

57658369693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220449600, while the sum is 67.

The spelling of 57658369693 in words is "fifty-seven billion, six hundred fifty-eight million, three hundred sixty-nine thousand, six hundred ninety-three".