86390202604689 has 45 divisors (see below), whose sum is σ = 129755231286681. Its totient is φ = 57281336037720.

The previous prime is 86390202604631. The next prime is 86390202604759. The reversal of 86390202604689 is 98640620209368.

The square root of 86390202604689 is 9294633.

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

86390202604689 is a `hidden beast` number, since 8 + 6 + 3 + 90 + 20 + 2 + 60 + 468 + 9 = 666.

It is not a de Polignac number, because 86390202604689 - 2²¹ = 86390200507537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86390202604609) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 15977471424 + ... + 15977476830.

Almost surely, 2^{86390202604689} is an apocalyptic number.

86390202604689 is the 9294633-rd square number.

86390202604689 is the 4647317-th centered octagonal number.

It is an amenable number.

86390202604689 is a deficient number, since it is larger than the sum of its proper divisors (43365028681992).

86390202604689 is an frugal number, since it uses more digits than its factorization.

86390202604689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11208 (or 5601 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 86390202604689 in words is "eighty-six trillion, three hundred ninety billion, two hundred two million, six hundred four thousand, six hundred eighty-nine".