86520863321 has 4 divisors (see below), whose sum is σ = 89311858944. Its totient is φ = 83729867700.

The previous prime is 86520863309. The next prime is 86520863327. The reversal of 86520863321 is 12336802568.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86520863321 - 2¹⁰ = 86520862297 is a prime.

It is a super-2 number, since 2×86520863321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86520863327) 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, 1395497765 + ... + 1395497826.

It is an arithmetic number, because the mean of its divisors is an integer number (22327964736).

Almost surely, 2^86520863321 is an apocalyptic number.

It is an amenable number.

86520863321 is a deficient number, since it is larger than the sum of its proper divisors (2790995623).

86520863321 is a wasteful number, since it uses less digits than its factorization.

86520863321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790995622.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 86520863321 in words is "eighty-six billion, five hundred twenty million, eight hundred sixty-three thousand, three hundred twenty-one".