85669240231 has 4 divisors (see below), whose sum is σ = 85669870000. Its totient is φ = 85668610464.

The previous prime is 85669240229. The next prime is 85669240247. The reversal of 85669240231 is 13204296658.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 85669240231 - 2¹ = 85669240229 is a prime.

It is a super-2 number, since 2×85669240231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85669249231) 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, 16731 + ... + 414268.

It is an arithmetic number, because the mean of its divisors is an integer number (21417467500).

Almost surely, 2^85669240231 is an apocalyptic number.

85669240231 is a deficient number, since it is larger than the sum of its proper divisors (629769).

85669240231 is a wasteful number, since it uses less digits than its factorization.

85669240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629768.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 85669240231 in words is "eighty-five billion, six hundred sixty-nine million, two hundred forty thousand, two hundred thirty-one".