454591413581 has 2 divisors, whose sum is σ = 454591413582. Its totient is φ = 454591413580.

The previous prime is 454591413569. The next prime is 454591413607. The reversal of 454591413581 is 185314195454.

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., 361572513481 + 93018900100 = 601309^2 + 304990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454591413581 is a prime.

It is a super-2 number, since 2×454591413581² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454591413781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227295706790 + 227295706791.

It is an arithmetic number, because the mean of its divisors is an integer number (227295706791).

Almost surely, 2^454591413581 is an apocalyptic number.

It is an amenable number.

454591413581 is a deficient number, since it is larger than the sum of its proper divisors (1).

454591413581 is an equidigital number, since it uses as much as digits as its factorization.

454591413581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728000, while the sum is 50.

The spelling of 454591413581 in words is "four hundred fifty-four billion, five hundred ninety-one million, four hundred thirteen thousand, five hundred eighty-one".