86815855533 has 8 divisors (see below), whose sum is σ = 126277608096. Its totient is φ = 52615670000.

The previous prime is 86815855519. The next prime is 86815855537. The reversal of 86815855533 is 33555851868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86815855533 - 2¹⁰ = 86815854509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86815855537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315391718 + ... + 1315391783.

It is an arithmetic number, because the mean of its divisors is an integer number (15784701012).

Almost surely, 2^86815855533 is an apocalyptic number.

It is an amenable number.

86815855533 is a deficient number, since it is larger than the sum of its proper divisors (39461752563).

86815855533 is a wasteful number, since it uses less digits than its factorization.

86815855533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630783515.

The product of its digits is 17280000, while the sum is 57.

The spelling of 86815855533 in words is "eighty-six billion, eight hundred fifteen million, eight hundred fifty-five thousand, five hundred thirty-three".