85963943879 has 8 divisors (see below), whose sum is σ = 93788224272. Its totient is φ = 78141226240.

The previous prime is 85963943851. The next prime is 85963943893. The reversal of 85963943879 is 97834936958.

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

It is not a de Polignac number, because 85963943879 - 2¹² = 85963939783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85963943579) 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, 274154 + ... + 497079.

It is an arithmetic number, because the mean of its divisors is an integer number (11723528034).

Almost surely, 2^85963943879 is an apocalyptic number.

85963943879 is a deficient number, since it is larger than the sum of its proper divisors (7824280393).

85963943879 is a wasteful number, since it uses less digits than its factorization.

85963943879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781377.

The product of its digits is 352719360, while the sum is 71.

The spelling of 85963943879 in words is "eighty-five billion, nine hundred sixty-three million, nine hundred forty-three thousand, eight hundred seventy-nine".