85886613769 has 4 divisors (see below), whose sum is σ = 93694487760. Its totient is φ = 78078739780.

The previous prime is 85886613749. The next prime is 85886613779. The reversal of 85886613769 is 96731668858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85886613769 - 2²¹ = 85884516617 is a prime.

It is a super-2 number, since 2×85886613769² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85886613749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903936979 + ... + 3903937000.

It is an arithmetic number, because the mean of its divisors is an integer number (23423621940).

Almost surely, 2^85886613769 is an apocalyptic number.

It is an amenable number.

85886613769 is a deficient number, since it is larger than the sum of its proper divisors (7807873991).

85886613769 is a wasteful number, since it uses less digits than its factorization.

85886613769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807873990.

The product of its digits is 104509440, while the sum is 67.

The spelling of 85886613769 in words is "eighty-five billion, eight hundred eighty-six million, six hundred thirteen thousand, seven hundred sixty-nine".