179929979369 has 4 divisors (see below), whose sum is σ = 205634262144. Its totient is φ = 154225696596.

The previous prime is 179929979323. The next prime is 179929979371. The reversal of 179929979369 is 963979929971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 179929979369 - 2²⁴ = 179913202153 is a prime.

It is a super-2 number, since 2×179929979369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 179929979293 and 179929979302.

It is not an unprimeable number, because it can be changed into a prime (179929979569) 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, 12852141377 + ... + 12852141390.

It is an arithmetic number, because the mean of its divisors is an integer number (51408565536).

Almost surely, 2^179929979369 is an apocalyptic number.

It is an amenable number.

179929979369 is a deficient number, since it is larger than the sum of its proper divisors (25704282775).

179929979369 is an equidigital number, since it uses as much as digits as its factorization.

179929979369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25704282774.

The product of its digits is 937461924, while the sum is 80.

The spelling of 179929979369 in words is "one hundred seventy-nine billion, nine hundred twenty-nine million, nine hundred seventy-nine thousand, three hundred sixty-nine".