3906521597063 has 2 divisors, whose sum is σ = 3906521597064. Its totient is φ = 3906521597062.

The previous prime is 3906521597039. The next prime is 3906521597137. The reversal of 3906521597063 is 3607951256093.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3906521597063 - 2¹⁶ = 3906521531527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3906521597863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953260798531 + 1953260798532.

It is an arithmetic number, because the mean of its divisors is an integer number (1953260798532).

Almost surely, 2^{3906521597063} is an apocalyptic number.

3906521597063 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906521597063 is an equidigital number, since it uses as much as digits as its factorization.

3906521597063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9185400, while the sum is 56.

The spelling of 3906521597063 in words is "three trillion, nine hundred six billion, five hundred twenty-one million, five hundred ninety-seven thousand, sixty-three".