86850394729 has 16 divisors (see below), whose sum is σ = 101213597952. Its totient is φ = 72978504768.

The previous prime is 86850394717. The next prime is 86850394753. The reversal of 86850394729 is 92749305868.

It is a cyclic number.

It is not a de Polignac number, because 86850394729 - 2⁹ = 86850394217 is a prime.

It is a super-2 number, since 2×86850394729² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86850394769) 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, 358027 + ... + 549439.

It is an arithmetic number, because the mean of its divisors is an integer number (6325849872).

Almost surely, 2^86850394729 is an apocalyptic number.

It is an amenable number.

86850394729 is a deficient number, since it is larger than the sum of its proper divisors (14363203223).

86850394729 is a wasteful number, since it uses less digits than its factorization.

86850394729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192696.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 86850394729 in words is "eighty-six billion, eight hundred fifty million, three hundred ninety-four thousand, seven hundred twenty-nine".