451620315644633 has 2 divisors, whose sum is σ = 451620315644634. Its totient is φ = 451620315644632.

The previous prime is 451620315644627. The next prime is 451620315644651. The reversal of 451620315644633 is 336446513026154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228642312371929 + 222978003272704 = 15120923^2 + 14932448^2 .

It is a cyclic number.

It is not a de Polignac number, because 451620315644633 - 2²⁶ = 451620248535769 is a prime.

It is not a weakly prime, because it can be changed into another prime (451620315644623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225810157822316 + 225810157822317.

It is an arithmetic number, because the mean of its divisors is an integer number (225810157822317).

Almost surely, 2^{451620315644633} is an apocalyptic number.

It is an amenable number.

451620315644633 is a deficient number, since it is larger than the sum of its proper divisors (1).

451620315644633 is an equidigital number, since it uses as much as digits as its factorization.

451620315644633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 53.

The spelling of 451620315644633 in words is "four hundred fifty-one trillion, six hundred twenty billion, three hundred fifteen million, six hundred forty-four thousand, six hundred thirty-three".