451531302121457 has 2 divisors, whose sum is σ = 451531302121458. Its totient is φ = 451531302121456.

The previous prime is 451531302121451. The next prime is 451531302121541. The reversal of 451531302121457 is 754121203135154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344650462375696 + 106880839745761 = 18564764^2 + 10338319^2 .

It is a cyclic number.

It is not a de Polignac number, because 451531302121457 - 2²⁶ = 451531235012593 is a prime.

It is not a weakly prime, because it can be changed into another prime (451531302121451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225765651060728 + 225765651060729.

It is an arithmetic number, because the mean of its divisors is an integer number (225765651060729).

Almost surely, 2^{451531302121457} is an apocalyptic number.

It is an amenable number.

451531302121457 is a deficient number, since it is larger than the sum of its proper divisors (1).

451531302121457 is an equidigital number, since it uses as much as digits as its factorization.

451531302121457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 451531302121457 in words is "four hundred fifty-one trillion, five hundred thirty-one billion, three hundred two million, one hundred twenty-one thousand, four hundred fifty-seven".