128327812579 has 8 divisors (see below), whose sum is σ = 129631055840. Its totient is φ = 127025672256.

The previous prime is 128327812549. The next prime is 128327812607. The reversal of 128327812579 is 975218723821.

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

It is a cyclic number.

It is not a de Polignac number, because 128327812579 - 2³¹ = 126180328931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128327812549) 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, 40842 + ... + 508255.

It is an arithmetic number, because the mean of its divisors is an integer number (16203881980).

Almost surely, 2^128327812579 is an apocalyptic number.

128327812579 is a deficient number, since it is larger than the sum of its proper divisors (1303243261).

128327812579 is a wasteful number, since it uses less digits than its factorization.

128327812579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551469.

The product of its digits is 3386880, while the sum is 55.

The spelling of 128327812579 in words is "one hundred twenty-eight billion, three hundred twenty-seven million, eight hundred twelve thousand, five hundred seventy-nine".