57486266869 has 2 divisors, whose sum is σ = 57486266870. Its totient is φ = 57486266868.

The previous prime is 57486266821. The next prime is 57486266897. The reversal of 57486266869 is 96866268475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31130367844 + 26355899025 = 176438^2 + 162345^2 .

It is a cyclic number.

It is not a de Polignac number, because 57486266869 - 2⁷ = 57486266741 is a prime.

It is a super-2 number, since 2×57486266869² (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 (57486266809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28743133434 + 28743133435.

It is an arithmetic number, because the mean of its divisors is an integer number (28743133435).

Almost surely, 2^57486266869 is an apocalyptic number.

It is an amenable number.

57486266869 is a deficient number, since it is larger than the sum of its proper divisors (1).

57486266869 is an equidigital number, since it uses as much as digits as its factorization.

57486266869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209018880, while the sum is 67.

The spelling of 57486266869 in words is "fifty-seven billion, four hundred eighty-six million, two hundred sixty-six thousand, eight hundred sixty-nine".