57723814397 has 2 divisors, whose sum is σ = 57723814398. Its totient is φ = 57723814396.

The previous prime is 57723814331. The next prime is 57723814409. The reversal of 57723814397 is 79341832775.

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., 51668017636 + 6055796761 = 227306^2 + 77819^2 .

It is a cyclic number.

It is not a de Polignac number, because 57723814397 - 2¹⁸ = 57723552253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57723814307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28861907198 + 28861907199.

It is an arithmetic number, because the mean of its divisors is an integer number (28861907199).

Almost surely, 2^57723814397 is an apocalyptic number.

It is an amenable number.

57723814397 is a deficient number, since it is larger than the sum of its proper divisors (1).

57723814397 is an equidigital number, since it uses as much as digits as its factorization.

57723814397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8890560, while the sum is 56.

The spelling of 57723814397 in words is "fifty-seven billion, seven hundred twenty-three million, eight hundred fourteen thousand, three hundred ninety-seven".