86252924621 has 4 divisors (see below), whose sum is σ = 86441662332. Its totient is φ = 86064186912.

The previous prime is 86252924579. The next prime is 86252924627. The reversal of 86252924621 is 12642925268.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50951775625 + 35301148996 = 225725^2 + 187886^2 .

It is a cyclic number.

It is not a de Polignac number, because 86252924621 - 2⁶ = 86252924557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86252924627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94368170 + ... + 94369083.

It is an arithmetic number, because the mean of its divisors is an integer number (21610415583).

Almost surely, 2^86252924621 is an apocalyptic number.

It is an amenable number.

86252924621 is a deficient number, since it is larger than the sum of its proper divisors (188737711).

86252924621 is a wasteful number, since it uses less digits than its factorization.

86252924621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188737710.

The product of its digits is 829440, while the sum is 47.

The spelling of 86252924621 in words is "eighty-six billion, two hundred fifty-two million, nine hundred twenty-four thousand, six hundred twenty-one".