86535798231 has 8 divisors (see below), whose sum is σ = 115415305344. Its totient is φ = 57673411640.

The previous prime is 86535798227. The next prime is 86535798301. The reversal of 86535798231 is 13289753568.

It is a happy number.

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 86535798231 - 2² = 86535798227 is a prime.

It is a super-2 number, since 2×86535798231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86535798221) 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, 4268331 + ... + 4288556.

It is an arithmetic number, because the mean of its divisors is an integer number (14426913168).

Almost surely, 2^86535798231 is an apocalyptic number.

86535798231 is a deficient number, since it is larger than the sum of its proper divisors (28879507113).

86535798231 is a wasteful number, since it uses less digits than its factorization.

86535798231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8560261.

The product of its digits is 10886400, while the sum is 57.

The spelling of 86535798231 in words is "eighty-six billion, five hundred thirty-five million, seven hundred ninety-eight thousand, two hundred thirty-one".