85840430807 has 4 divisors (see below), whose sum is σ = 85844283840. Its totient is φ = 85836577776.

The previous prime is 85840430801. The next prime is 85840430813. The reversal of 85840430807 is 70803404858.

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

It is an interprime number because it is at equal distance from previous prime (85840430801) and next prime (85840430813).

It is a cyclic number.

It is not a de Polignac number, because 85840430807 - 2³⁰ = 84766688983 is a prime.

It is a super-2 number, since 2×85840430807² (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 (85840430801) 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, 1892903 + ... + 1937720.

It is an arithmetic number, because the mean of its divisors is an integer number (21461070960).

Almost surely, 2^85840430807 is an apocalyptic number.

85840430807 is a deficient number, since it is larger than the sum of its proper divisors (3853033).

85840430807 is a wasteful number, since it uses less digits than its factorization.

85840430807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853032.

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 85840430807 in words is "eighty-five billion, eight hundred forty million, four hundred thirty thousand, eight hundred seven".