1979418169 has 8 divisors (see below), whose sum is σ = 2044369152. Its totient is φ = 1914535920.

The previous prime is 1979418143. The next prime is 1979418179. The reversal of 1979418169 is 9618149791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1979418169 - 2¹⁷ = 1979287097 is a prime.

It is a super-2 number, since 2×1979418169² = 7836192575534625122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1979418139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44982 + ... + 77344.

It is an arithmetic number, because the mean of its divisors is an integer number (255546144).

Almost surely, 2^1979418169 is an apocalyptic number.

It is an amenable number.

1979418169 is a deficient number, since it is larger than the sum of its proper divisors (64950983).

1979418169 is a wasteful number, since it uses less digits than its factorization.

1979418169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34367.

The product of its digits is 979776, while the sum is 55.

The square root of 1979418169 is about 44490.6526025411. The cubic root of 1979418169 is about 1255.5842253792.

The spelling of 1979418169 in words is "one billion, nine hundred seventy-nine million, four hundred eighteen thousand, one hundred sixty-nine".