86320742729 has 16 divisors (see below), whose sum is σ = 95332298880. Its totient is φ = 77652224640.

The previous prime is 86320742707. The next prime is 86320742741. The reversal of 86320742729 is 92724702368.

It is a cyclic number.

It is not a de Polignac number, because 86320742729 - 2¹⁶ = 86320677193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86320742749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401714 + ... + 577940.

It is an arithmetic number, because the mean of its divisors is an integer number (5958268680).

Almost surely, 2^86320742729 is an apocalyptic number.

It is an amenable number.

86320742729 is a deficient number, since it is larger than the sum of its proper divisors (9011556151).

86320742729 is a wasteful number, since it uses less digits than its factorization.

86320742729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177200.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 86320742729 in words is "eighty-six billion, three hundred twenty million, seven hundred forty-two thousand, seven hundred twenty-nine".