1178873879 has 4 divisors (see below), whose sum is σ = 1184067384. Its totient is φ = 1173680376.

The previous prime is 1178873869. The next prime is 1178873887. The reversal of 1178873879 is 9783788711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1178873879 - 2⁴ = 1178873863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178873819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2596412 + ... + 2596865.

It is an arithmetic number, because the mean of its divisors is an integer number (296016846).

Almost surely, 2^1178873879 is an apocalyptic number.

1178873879 is a deficient number, since it is larger than the sum of its proper divisors (5193505).

1178873879 is an equidigital number, since it uses as much as digits as its factorization.

1178873879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193504.

The product of its digits is 4741632, while the sum is 59.

The square root of 1178873879 is about 34334.7328371723. The cubic root of 1178873879 is about 1056.3855410297.

The spelling of 1178873879 in words is "one billion, one hundred seventy-eight million, eight hundred seventy-three thousand, eight hundred seventy-nine".