86520626393 has 4 divisors (see below), whose sum is σ = 86968919988. Its totient is φ = 86072332800.

The previous prime is 86520626369. The next prime is 86520626399. The reversal of 86520626393 is 39362602568.

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 59307835024 + 27212791369 = 243532^2 + 164963^2 .

It is a cyclic number.

It is not a de Polignac number, because 86520626393 - 2¹⁰ = 86520625369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86520626399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224146508 + ... + 224146893.

It is an arithmetic number, because the mean of its divisors is an integer number (21742229997).

Almost surely, 2^86520626393 is an apocalyptic number.

It is an amenable number.

86520626393 is a deficient number, since it is larger than the sum of its proper divisors (448293595).

86520626393 is a wasteful number, since it uses less digits than its factorization.

86520626393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448293594.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 86520626393 in words is "eighty-six billion, five hundred twenty million, six hundred twenty-six thousand, three hundred ninety-three".