879916886809 has 2 divisors, whose sum is σ = 879916886810. Its totient is φ = 879916886808.

The previous prime is 879916886753. The next prime is 879916886813. The reversal of 879916886809 is 908688619978.

879916886809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669456149209 + 210460737600 = 818203^2 + 458760^2 .

It is a cyclic number.

It is not a de Polignac number, because 879916886809 - 2¹¹ = 879916884761 is a prime.

It is a super-3 number, since 3×879916886809³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (879916886879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439958443404 + 439958443405.

It is an arithmetic number, because the mean of its divisors is an integer number (439958443405).

Almost surely, 2^879916886809 is an apocalyptic number.

It is an amenable number.

879916886809 is a deficient number, since it is larger than the sum of its proper divisors (1).

879916886809 is an equidigital number, since it uses as much as digits as its factorization.

879916886809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752467968, while the sum is 79.

The spelling of 879916886809 in words is "eight hundred seventy-nine billion, nine hundred sixteen million, eight hundred eighty-six thousand, eight hundred nine".