454987831589 has 2 divisors, whose sum is σ = 454987831590. Its totient is φ = 454987831588.

The previous prime is 454987831579. The next prime is 454987831621. The reversal of 454987831589 is 985138789454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257525800900 + 197462030689 = 507470^2 + 444367^2 .

It is a cyclic number.

It is not a de Polignac number, because 454987831589 - 2¹² = 454987827493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454987831579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227493915794 + 227493915795.

It is an arithmetic number, because the mean of its divisors is an integer number (227493915795).

Almost surely, 2^454987831589 is an apocalyptic number.

It is an amenable number.

454987831589 is a deficient number, since it is larger than the sum of its proper divisors (1).

454987831589 is an equidigital number, since it uses as much as digits as its factorization.

454987831589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 348364800, while the sum is 71.

The spelling of 454987831589 in words is "four hundred fifty-four billion, nine hundred eighty-seven million, eight hundred thirty-one thousand, five hundred eighty-nine".