451031664410623 has 2 divisors, whose sum is σ = 451031664410624. Its totient is φ = 451031664410622.

The previous prime is 451031664410521. The next prime is 451031664410647. The reversal of 451031664410623 is 326014466130154.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451031664410623 is a prime.

It is a super-2 number, since 2×451031664410623² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451031664410653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225515832205311 + 225515832205312.

It is an arithmetic number, because the mean of its divisors is an integer number (225515832205312).

Almost surely, 2^{451031664410623} is an apocalyptic number.

451031664410623 is a deficient number, since it is larger than the sum of its proper divisors (1).

451031664410623 is an equidigital number, since it uses as much as digits as its factorization.

451031664410623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 451031664410623 in words is "four hundred fifty-one trillion, thirty-one billion, six hundred sixty-four million, four hundred ten thousand, six hundred twenty-three".