1950569918 has 16 divisors (see below), whose sum is σ = 3252067056. Its totient is φ = 869893440.

The previous prime is 1950569917. The next prime is 1950569927. The reversal of 1950569918 is 8199650591.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 1950569918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1950569911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835271 + ... + 837602.

It is an arithmetic number, because the mean of its divisors is an integer number (203254191).

Almost surely, 2^1950569918 is an apocalyptic number.

1950569918 is a deficient number, since it is larger than the sum of its proper divisors (1301497138).

1950569918 is a wasteful number, since it uses less digits than its factorization.

1950569918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672939.

The product of its (nonzero) digits is 874800, while the sum is 53.

The square root of 1950569918 is about 44165.2569108343. The cubic root of 1950569918 is about 1249.4546779737.

The spelling of 1950569918 in words is "one billion, nine hundred fifty million, five hundred sixty-nine thousand, nine hundred eighteen".