86641734863 has 16 divisors (see below), whose sum is σ = 94740332544. Its totient is φ = 78879070080.

The previous prime is 86641734799. The next prime is 86641734877. The reversal of 86641734863 is 36843714668.

It is a cyclic number.

It is not a de Polignac number, because 86641734863 - 2⁶ = 86641734799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86641734799 and 86641734808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86641784863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1169306 + ... + 1241192.

It is an arithmetic number, because the mean of its divisors is an integer number (5921270784).

Almost surely, 2^86641734863 is an apocalyptic number.

86641734863 is a deficient number, since it is larger than the sum of its proper divisors (8098597681).

86641734863 is a wasteful number, since it uses less digits than its factorization.

86641734863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74222.

The product of its digits is 13934592, while the sum is 56.

The spelling of 86641734863 in words is "eighty-six billion, six hundred forty-one million, seven hundred thirty-four thousand, eight hundred sixty-three".