86364356993 has 4 divisors (see below), whose sum is σ = 86943983700. Its totient is φ = 85784730288.

The previous prime is 86364356891. The next prime is 86364357029. The reversal of 86364356993 is 39965346368.

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 48095998864 + 38268358129 = 219308^2 + 195623^2 .

It is a cyclic number.

It is not a de Polignac number, because 86364356993 - 2¹² = 86364352897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86364350993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289813130 + ... + 289813427.

It is an arithmetic number, because the mean of its divisors is an integer number (21735995925).

Almost surely, 2^86364356993 is an apocalyptic number.

It is an amenable number.

86364356993 is a deficient number, since it is larger than the sum of its proper divisors (579626707).

86364356993 is a wasteful number, since it uses less digits than its factorization.

86364356993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579626706.

The product of its digits is 75582720, while the sum is 62.

The spelling of 86364356993 in words is "eighty-six billion, three hundred sixty-four million, three hundred fifty-six thousand, nine hundred ninety-three".