179782490879 has 4 divisors (see below), whose sum is σ = 179783517576. Its totient is φ = 179781464184.

The previous prime is 179782490869. The next prime is 179782490887. The reversal of 179782490879 is 978094287971.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 179782490879 - 2⁸ = 179782490623 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 (179782490869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177404 + ... + 625329.

It is an arithmetic number, because the mean of its divisors is an integer number (44945879394).

Almost surely, 2^179782490879 is an apocalyptic number.

179782490879 is a deficient number, since it is larger than the sum of its proper divisors (1026697).

179782490879 is an equidigital number, since it uses as much as digits as its factorization.

179782490879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026696.

The product of its (nonzero) digits is 128024064, while the sum is 71.

The spelling of 179782490879 in words is "one hundred seventy-nine billion, seven hundred eighty-two million, four hundred ninety thousand, eight hundred seventy-nine".