325436634491 has 2 divisors, whose sum is σ = 325436634492. Its totient is φ = 325436634490.

The previous prime is 325436634469. The next prime is 325436634533. The reversal of 325436634491 is 194436634523.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 325436634491 - 2⁶ = 325436634427 is a prime.

It is not a weakly prime, because it can be changed into another prime (325436636491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162718317245 + 162718317246.

It is an arithmetic number, because the mean of its divisors is an integer number (162718317246).

Almost surely, 2^325436634491 is an apocalyptic number.

325436634491 is a deficient number, since it is larger than the sum of its proper divisors (1).

325436634491 is an equidigital number, since it uses as much as digits as its factorization.

325436634491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 50.

The spelling of 325436634491 in words is "three hundred twenty-five billion, four hundred thirty-six million, six hundred thirty-four thousand, four hundred ninety-one".