85986248753 has 4 divisors (see below), whose sum is σ = 88310201460. Its totient is φ = 83662296048.

The previous prime is 85986248737. The next prime is 85986248759. The reversal of 85986248753 is 35784268958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81101357089 + 4884891664 = 284783^2 + 69892^2 .

It is a cyclic number.

It is not a de Polignac number, because 85986248753 - 2⁴ = 85986248737 is a prime.

It is a super-2 number, since 2×85986248753² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85986248753.

It is not an unprimeable number, because it can be changed into a prime (85986248759) 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, 1161976298 + ... + 1161976371.

It is an arithmetic number, because the mean of its divisors is an integer number (22077550365).

Almost surely, 2^85986248753 is an apocalyptic number.

It is an amenable number.

85986248753 is a deficient number, since it is larger than the sum of its proper divisors (2323952707).

85986248753 is a wasteful number, since it uses less digits than its factorization.

85986248753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323952706.

The product of its digits is 116121600, while the sum is 65.

The spelling of 85986248753 in words is "eighty-five billion, nine hundred eighty-six million, two hundred forty-eight thousand, seven hundred fifty-three".