1979975318 has 8 divisors (see below), whose sum is σ = 2971109160. Its totient is φ = 989605600.

The previous prime is 1979975297. The next prime is 1979975359. The reversal of 1979975318 is 8135799791.

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

It is a super-2 number, since 2×1979975318² = 7840604519778402248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184508 + ... + 194943.

It is an arithmetic number, because the mean of its divisors is an integer number (371388645).

Almost surely, 2^1979975318 is an apocalyptic number.

1979975318 is a deficient number, since it is larger than the sum of its proper divisors (991133842).

1979975318 is a wasteful number, since it uses less digits than its factorization.

1979975318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382062.

The product of its digits is 4286520, while the sum is 59.

The square root of 1979975318 is about 44496.9135783596. The cubic root of 1979975318 is about 1255.7020178838.

The spelling of 1979975318 in words is "one billion, nine hundred seventy-nine million, nine hundred seventy-five thousand, three hundred eighteen".