86443472291 has 8 divisors (see below), whose sum is σ = 94706702064. Its totient is φ = 78247697920.

The previous prime is 86443472279. The next prime is 86443472371. The reversal of 86443472291 is 19227434468.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86443472291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86443472221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16861166 + ... + 16866291.

It is an arithmetic number, because the mean of its divisors is an integer number (11838337758).

Almost surely, 2^86443472291 is an apocalyptic number.

86443472291 is a deficient number, since it is larger than the sum of its proper divisors (8263229773).

86443472291 is a wasteful number, since it uses less digits than its factorization.

86443472291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33727701.

The product of its digits is 2322432, while the sum is 50.

The spelling of 86443472291 in words is "eighty-six billion, four hundred forty-three million, four hundred seventy-two thousand, two hundred ninety-one".