86174278221 has 8 divisors (see below), whose sum is σ = 115630879264. Its totient is φ = 57083598000.

The previous prime is 86174278199. The next prime is 86174278231. The reversal of 86174278221 is 12287247168.

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

It is not a de Polignac number, because 86174278221 - 2¹⁵ = 86174245453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86174278231) 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 7 ways as a sum of consecutive naturals, for example, 91479655 + ... + 91480596.

It is an arithmetic number, because the mean of its divisors is an integer number (14453859908).

Almost surely, 2^86174278221 is an apocalyptic number.

It is an amenable number.

86174278221 is a deficient number, since it is larger than the sum of its proper divisors (29456601043).

86174278221 is a wasteful number, since it uses less digits than its factorization.

86174278221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182960411.

The product of its digits is 602112, while the sum is 48.

The spelling of 86174278221 in words is "eighty-six billion, one hundred seventy-four million, two hundred seventy-eight thousand, two hundred twenty-one".