86192978729 has 16 divisors (see below), whose sum is σ = 102264289344. Its totient is φ = 71613624000.

The previous prime is 86192978717. The next prime is 86192978741. The reversal of 86192978729 is 92787929168.

It is an interprime number because it is at equal distance from previous prime (86192978717) and next prime (86192978741).

It is a cyclic number.

It is not a de Polignac number, because 86192978729 - 2²⁸ = 85924543273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86192978789) 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, 2969459 + ... + 2998344.

It is an arithmetic number, because the mean of its divisors is an integer number (6391518084).

Almost surely, 2^86192978729 is an apocalyptic number.

It is an amenable number.

86192978729 is a deficient number, since it is larger than the sum of its proper divisors (16071310615).

86192978729 is a wasteful number, since it uses less digits than its factorization.

86192978729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967928.

The product of its digits is 54867456, while the sum is 68.

The spelling of 86192978729 in words is "eighty-six billion, one hundred ninety-two million, nine hundred seventy-eight thousand, seven hundred twenty-nine".