78889521113 has 8 divisors (see below), whose sum is σ = 86225975808. Its totient is φ = 71734213584.

The previous prime is 78889521097. The next prime is 78889521127. The reversal of 78889521113 is 31112598887.

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 78889521113 - 2⁴ = 78889521097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78889521133) 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, 45285881 + ... + 45287622.

It is an arithmetic number, because the mean of its divisors is an integer number (10778246976).

Almost surely, 2^78889521113 is an apocalyptic number.

It is an amenable number.

78889521113 is a deficient number, since it is larger than the sum of its proper divisors (7336454695).

78889521113 is a wasteful number, since it uses less digits than its factorization.

78889521113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90573583.

The product of its digits is 967680, while the sum is 53.

The spelling of 78889521113 in words is "seventy-eight billion, eight hundred eighty-nine million, five hundred twenty-one thousand, one hundred thirteen".