79288857889 has 8 divisors (see below), whose sum is σ = 79457414400. Its totient is φ = 79120423200.

The previous prime is 79288857847. The next prime is 79288857899. The reversal of 79288857889 is 98875888297.

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 79288857889 - 2⁹ = 79288857377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79288857899) 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, 1337304 + ... + 1395334.

It is an arithmetic number, because the mean of its divisors is an integer number (9932176800).

Almost surely, 2^79288857889 is an apocalyptic number.

It is an amenable number.

79288857889 is a deficient number, since it is larger than the sum of its proper divisors (168556511).

79288857889 is a wasteful number, since it uses less digits than its factorization.

79288857889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60911.

The product of its digits is 1300561920, while the sum is 79.

The spelling of 79288857889 in words is "seventy-nine billion, two hundred eighty-eight million, eight hundred fifty-seven thousand, eight hundred eighty-nine".