454497686657 has 24 divisors (see below), whose sum is σ = 543877739496. Its totient is φ = 378421279488.

The previous prime is 454497686651. The next prime is 454497686707. The reversal of 454497686657 is 756686794454.

It can be written as a sum of positive squares in 4 ways, for example, as 577488961 + 453920197696 = 24031^2 + 673736^2 .

It is not a de Polignac number, because 454497686657 - 2⁶ = 454497686593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454497686651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 906893 + ... + 1315845.

It is an arithmetic number, because the mean of its divisors is an integer number (22661572479).

Almost surely, 2^454497686657 is an apocalyptic number.

It is an amenable number.

454497686657 is a deficient number, since it is larger than the sum of its proper divisors (89380052839).

454497686657 is a wasteful number, since it uses less digits than its factorization.

454497686657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409617 (or 409610 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 71.

The spelling of 454497686657 in words is "four hundred fifty-four billion, four hundred ninety-seven million, six hundred eighty-six thousand, six hundred fifty-seven".