85683863365 has 4 divisors (see below), whose sum is σ = 102820636044. Its totient is φ = 68547090688.

The previous prime is 85683863359. The next prime is 85683863371. The reversal of 85683863365 is 56336838658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56336838658 = 2 ⋅28168419329.

It is an interprime number because it is at equal distance from previous prime (85683863359) and next prime (85683863371).

It can be written as a sum of positive squares in 2 ways, for example, as 50537737636 + 35146125729 = 224806^2 + 187473^2 .

It is a cyclic number.

It is not a de Polignac number, because 85683863365 - 2³ = 85683863357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8568386332 + ... + 8568386341.

It is an arithmetic number, because the mean of its divisors is an integer number (25705159011).

Almost surely, 2^85683863365 is an apocalyptic number.

It is an amenable number.

85683863365 is a deficient number, since it is larger than the sum of its proper divisors (17136772679).

85683863365 is a wasteful number, since it uses less digits than its factorization.

85683863365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17136772678.

The product of its digits is 74649600, while the sum is 61.

The spelling of 85683863365 in words is "eighty-five billion, six hundred eighty-three million, eight hundred sixty-three thousand, three hundred sixty-five".