325456951691 has 2 divisors, whose sum is σ = 325456951692. Its totient is φ = 325456951690.

The previous prime is 325456951669. The next prime is 325456951697. The reversal of 325456951691 is 196159654523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 325456951691 - 2²² = 325452757387 is a prime.

It is not a weakly prime, because it can be changed into another prime (325456951697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162728475845 + 162728475846.

It is an arithmetic number, because the mean of its divisors is an integer number (162728475846).

Almost surely, 2^325456951691 is an apocalyptic number.

325456951691 is a deficient number, since it is larger than the sum of its proper divisors (1).

325456951691 is an equidigital number, since it uses as much as digits as its factorization.

325456951691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748000, while the sum is 56.

The spelling of 325456951691 in words is "three hundred twenty-five billion, four hundred fifty-six million, nine hundred fifty-one thousand, six hundred ninety-one".