451620315645193 has 2 divisors, whose sum is σ = 451620315645194. Its totient is φ = 451620315645192.

The previous prime is 451620315645157. The next prime is 451620315645209. The reversal of 451620315645193 is 391546513026154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264579763064464 + 187040552580729 = 16265908^2 + 13676277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451620315645193 is a prime.

It is not a weakly prime, because it can be changed into another prime (451620315615193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225810157822596 + 225810157822597.

It is an arithmetic number, because the mean of its divisors is an integer number (225810157822597).

Almost surely, 2^{451620315645193} is an apocalyptic number.

It is an amenable number.

451620315645193 is a deficient number, since it is larger than the sum of its proper divisors (1).

451620315645193 is an equidigital number, since it uses as much as digits as its factorization.

451620315645193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664000, while the sum is 55.

The spelling of 451620315645193 in words is "four hundred fifty-one trillion, six hundred twenty billion, three hundred fifteen million, six hundred forty-five thousand, one hundred ninety-three".