789867551161 has 32 divisors (see below), whose sum is σ = 904374293760. Its totient is φ = 684460917504.

The previous prime is 789867551149. The next prime is 789867551171. The reversal of 789867551161 is 161155768987.

It is not a de Polignac number, because 789867551161 - 2⁵ = 789867551129 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 789867551093 and 789867551102.

It is not an unprimeable number, because it can be changed into a prime (789867551171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20667276 + ... + 20705458.

It is an arithmetic number, because the mean of its divisors is an integer number (28261696680).

Almost surely, 2^789867551161 is an apocalyptic number.

It is an amenable number.

789867551161 is a deficient number, since it is larger than the sum of its proper divisors (114506742599).

789867551161 is a wasteful number, since it uses less digits than its factorization.

789867551161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39745.

The product of its digits is 25401600, while the sum is 64.

The spelling of 789867551161 in words is "seven hundred eighty-nine billion, eight hundred sixty-seven million, five hundred fifty-one thousand, one hundred sixty-one".