137599662857 has 2 divisors, whose sum is σ = 137599662858. Its totient is φ = 137599662856.

The previous prime is 137599662841. The next prime is 137599662901. The reversal of 137599662857 is 758266995731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95812535296 + 41787127561 = 309536^2 + 204419^2 .

It is a cyclic number.

It is not a de Polignac number, because 137599662857 - 2⁴ = 137599662841 is a prime.

It is not a weakly prime, because it can be changed into another prime (137599662257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68799831428 + 68799831429.

It is an arithmetic number, because the mean of its divisors is an integer number (68799831429).

Almost surely, 2^137599662857 is an apocalyptic number.

It is an amenable number.

137599662857 is a deficient number, since it is larger than the sum of its proper divisors (1).

137599662857 is an equidigital number, since it uses as much as digits as its factorization.

137599662857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 171460800, while the sum is 68.

The spelling of 137599662857 in words is "one hundred thirty-seven billion, five hundred ninety-nine million, six hundred sixty-two thousand, eight hundred fifty-seven".