57843750869 has 2 divisors, whose sum is σ = 57843750870. Its totient is φ = 57843750868.

The previous prime is 57843750823. The next prime is 57843750889. The reversal of 57843750869 is 96805734875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57345880900 + 497869969 = 239470^2 + 22313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57843750869 is a prime.

It is a super-2 number, since 2×57843750869² (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 (57843750889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28921875434 + 28921875435.

It is an arithmetic number, because the mean of its divisors is an integer number (28921875435).

Almost surely, 2^57843750869 is an apocalyptic number.

It is an amenable number.

57843750869 is a deficient number, since it is larger than the sum of its proper divisors (1).

57843750869 is an equidigital number, since it uses as much as digits as its factorization.

57843750869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 57843750869 in words is "fifty-seven billion, eight hundred forty-three million, seven hundred fifty thousand, eight hundred sixty-nine".