3930516451997 has 2 divisors, whose sum is σ = 3930516451998. Its totient is φ = 3930516451996.

The previous prime is 3930516451963. The next prime is 3930516452039. The reversal of 3930516451997 is 7991546150393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2823673583641 + 1106842868356 = 1680379^2 + 1052066^2 .

It is a cyclic number.

It is not a de Polignac number, because 3930516451997 - 2²⁴ = 3930499674781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3930516351997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965258225998 + 1965258225999.

It is an arithmetic number, because the mean of its divisors is an integer number (1965258225999).

Almost surely, 2^{3930516451997} is an apocalyptic number.

It is an amenable number.

3930516451997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3930516451997 is an equidigital number, since it uses as much as digits as its factorization.

3930516451997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27556200, while the sum is 62.

The spelling of 3930516451997 in words is "three trillion, nine hundred thirty billion, five hundred sixteen million, four hundred fifty-one thousand, nine hundred ninety-seven".