451400571461813 has 2 divisors, whose sum is σ = 451400571461814. Its totient is φ = 451400571461812.

The previous prime is 451400571461771. The next prime is 451400571461887. The reversal of 451400571461813 is 318164175004154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358999684660369 + 92400886801444 = 18947287^2 + 9612538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451400571461813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451400571461113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225700285730906 + 225700285730907.

It is an arithmetic number, because the mean of its divisors is an integer number (225700285730907).

Almost surely, 2^{451400571461813} is an apocalyptic number.

It is an amenable number.

451400571461813 is a deficient number, since it is larger than the sum of its proper divisors (1).

451400571461813 is an equidigital number, since it uses as much as digits as its factorization.

451400571461813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 451400571461813 in words is "four hundred fifty-one trillion, four hundred billion, five hundred seventy-one million, four hundred sixty-one thousand, eight hundred thirteen".