85736715231 has 8 divisors (see below), whose sum is σ = 115600065840. Its totient is φ = 56515587392.

The previous prime is 85736715217. The next prime is 85736715271. The reversal of 85736715231 is 13251763758.

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 85736715231 - 2¹³ = 85736707039 is a prime.

It is a super-2 number, since 2×85736715231² (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 (85736715271) 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, 160555380 + ... + 160555913.

It is an arithmetic number, because the mean of its divisors is an integer number (14450008230).

Almost surely, 2^85736715231 is an apocalyptic number.

85736715231 is a deficient number, since it is larger than the sum of its proper divisors (29863350609).

85736715231 is a wasteful number, since it uses less digits than its factorization.

85736715231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321111385.

The product of its digits is 1058400, while the sum is 48.

The spelling of 85736715231 in words is "eighty-five billion, seven hundred thirty-six million, seven hundred fifteen thousand, two hundred thirty-one".