86728212579 has 8 divisors (see below), whose sum is σ = 115643381440. Its totient is φ = 57815926056.

The previous prime is 86728212569. The next prime is 86728212653. The reversal of 86728212579 is 97521282768.

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

It is not a de Polignac number, because 86728212579 - 2⁴ = 86728212563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86728212569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649369 + ... + 771450.

It is an arithmetic number, because the mean of its divisors is an integer number (14455422680).

Almost surely, 2^86728212579 is an apocalyptic number.

86728212579 is a deficient number, since it is larger than the sum of its proper divisors (28915168861).

86728212579 is a wasteful number, since it uses less digits than its factorization.

86728212579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441169.

The product of its digits is 6773760, while the sum is 57.

The spelling of 86728212579 in words is "eighty-six billion, seven hundred twenty-eight million, two hundred twelve thousand, five hundred seventy-nine".