8408137057 has 2 divisors, whose sum is σ = 8408137058. Its totient is φ = 8408137056.

The previous prime is 8408137043. The next prime is 8408137081. The reversal of 8408137057 is 7507318048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8389827216 + 18309841 = 91596^2 + 4279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8408137057 is a prime.

It is not a weakly prime, because it can be changed into another prime (8408131057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4204068528 + 4204068529.

It is an arithmetic number, because the mean of its divisors is an integer number (4204068529).

Almost surely, 2^8408137057 is an apocalyptic number.

It is an amenable number.

8408137057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8408137057 is an equidigital number, since it uses as much as digits as its factorization.

8408137057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 8408137057 is about 91695.8944391732. The cubic root of 8408137057 is about 2033.4488887089.

The spelling of 8408137057 in words is "eight billion, four hundred eight million, one hundred thirty-seven thousand, fifty-seven".