85722865715 has 8 divisors (see below), whose sum is σ = 102878997648. Its totient is φ = 68570586720.

The previous prime is 85722865643. The next prime is 85722865717. The reversal of 85722865715 is 51756822758.

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

It is not a de Polignac number, because 85722865715 - 2¹⁶ = 85722800179 is a prime.

It is a super-2 number, since 2×85722865715² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85722865717) 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, 914057 + ... + 1003466.

It is an arithmetic number, because the mean of its divisors is an integer number (12859874706).

Almost surely, 2^85722865715 is an apocalyptic number.

85722865715 is a deficient number, since it is larger than the sum of its proper divisors (17156131933).

85722865715 is a wasteful number, since it uses less digits than its factorization.

85722865715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926469.

The product of its digits is 9408000, while the sum is 56.

The spelling of 85722865715 in words is "eighty-five billion, seven hundred twenty-two million, eight hundred sixty-five thousand, seven hundred fifteen".