57715626149 has 2 divisors, whose sum is σ = 57715626150. Its totient is φ = 57715626148.

The previous prime is 57715626131. The next prime is 57715626151. The reversal of 57715626149 is 94162651775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34097469025 + 23618157124 = 184655^2 + 153682^2 .

It is a cyclic number.

It is not a de Polignac number, because 57715626149 - 2¹⁶ = 57715560613 is a prime.

It is a super-2 number, since 2×57715626149² (a number of 22 digits) contains 22 as substring.

Together with 57715626151, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57715626149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57715629149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28857813074 + 28857813075.

It is an arithmetic number, because the mean of its divisors is an integer number (28857813075).

Almost surely, 2^57715626149 is an apocalyptic number.

It is an amenable number.

57715626149 is a deficient number, since it is larger than the sum of its proper divisors (1).

57715626149 is an equidigital number, since it uses as much as digits as its factorization.

57715626149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 53.

The spelling of 57715626149 in words is "fifty-seven billion, seven hundred fifteen million, six hundred twenty-six thousand, one hundred forty-nine".