1180879209 has 8 divisors (see below), whose sum is σ = 1749450720. Its totient is φ = 787252788.

The previous prime is 1180879199. The next prime is 1180879213. The reversal of 1180879209 is 9029780811.

It is not a de Polignac number, because 1180879209 - 2¹⁹ = 1180354921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1180809209) 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, 21868107 + ... + 21868160.

It is an arithmetic number, because the mean of its divisors is an integer number (218681340).

Almost surely, 2^1180879209 is an apocalyptic number.

It is an amenable number.

1180879209 is a deficient number, since it is larger than the sum of its proper divisors (568571511).

1180879209 is an equidigital number, since it uses as much as digits as its factorization.

1180879209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43736276 (or 43736270 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 1180879209 is about 34363.9230734793. The cubic root of 1180879209 is about 1056.9841918879.

The spelling of 1180879209 in words is "one billion, one hundred eighty million, eight hundred seventy-nine thousand, two hundred nine".