386457425649 has 15 divisors (see below), whose sum is σ = 577308956763. Its totient is φ = 257634553824.

The previous prime is 386457425603. The next prime is 386457425659. The reversal of 386457425649 is 946524754683.

The square root of 386457425649 is 621657.

It is a perfect power (a square), and thus also a powerful number.

386457425649 is a `hidden beast` number, since 3 + 8 + 6 + 4 + 574 + 2 + 56 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 235627722225 + 150829703424 = 485415^2 + 388368^2 .

It is not a de Polignac number, because 386457425649 - 2³¹ = 384309942001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (386457425659) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5560377 + ... + 5629449.

Almost surely, 2^386457425649 is an apocalyptic number.

386457425649 is the 621657-th square number.

386457425649 is the 310829-th centered octagonal number.

It is an amenable number.

386457425649 is a deficient number, since it is larger than the sum of its proper divisors (190851531114).

386457425649 is an frugal number, since it uses more digits than its factorization.

386457425649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138158 (or 69076 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 63.

The spelling of 386457425649 in words is "three hundred eighty-six billion, four hundred fifty-seven million, four hundred twenty-five thousand, six hundred forty-nine".