57723813869 has 2 divisors, whose sum is σ = 57723813870. Its totient is φ = 57723813868.

The previous prime is 57723813857. The next prime is 57723813877. The reversal of 57723813869 is 96831832775.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57714296644 + 9517225 = 240238^2 + 3085^2 .

It is a cyclic number.

It is not a de Polignac number, because 57723813869 - 2³² = 53428846573 is a prime.

It is a super-2 number, since 2×57723813869² (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 (57723813899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28861906934 + 28861906935.

It is an arithmetic number, because the mean of its divisors is an integer number (28861906935).

Almost surely, 2^57723813869 is an apocalyptic number.

It is an amenable number.

57723813869 is a deficient number, since it is larger than the sum of its proper divisors (1).

57723813869 is an equidigital number, since it uses as much as digits as its factorization.

57723813869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 59.

The spelling of 57723813869 in words is "fifty-seven billion, seven hundred twenty-three million, eight hundred thirteen thousand, eight hundred sixty-nine".