57373891109 has 2 divisors, whose sum is σ = 57373891110. Its totient is φ = 57373891108.

The previous prime is 57373891067. The next prime is 57373891123. The reversal of 57373891109 is 90119837375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56606878084 + 767013025 = 237922^2 + 27695^2 .

It is a cyclic number.

It is not a de Polignac number, because 57373891109 - 2²⁰ = 57372842533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57373891009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28686945554 + 28686945555.

It is an arithmetic number, because the mean of its divisors is an integer number (28686945555).

Almost surely, 2^57373891109 is an apocalyptic number.

It is an amenable number.

57373891109 is a deficient number, since it is larger than the sum of its proper divisors (1).

57373891109 is an equidigital number, since it uses as much as digits as its factorization.

57373891109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The spelling of 57373891109 in words is "fifty-seven billion, three hundred seventy-three million, eight hundred ninety-one thousand, one hundred nine".