3906521597137 has 2 divisors, whose sum is σ = 3906521597138. Its totient is φ = 3906521597136.

The previous prime is 3906521597063. The next prime is 3906521597243. The reversal of 3906521597137 is 7317951256093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3906469237441 + 52359696 = 1976479^2 + 7236^2 .

It is a cyclic number.

It is not a de Polignac number, because 3906521597137 - 2¹¹ = 3906521595089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3906521297137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953260798568 + 1953260798569.

It is an arithmetic number, because the mean of its divisors is an integer number (1953260798569).

Almost surely, 2^{3906521597137} is an apocalyptic number.

It is an amenable number.

3906521597137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906521597137 is an equidigital number, since it uses as much as digits as its factorization.

3906521597137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10716300, while the sum is 58.

The spelling of 3906521597137 in words is "three trillion, nine hundred six billion, five hundred twenty-one million, five hundred ninety-seven thousand, one hundred thirty-seven".