1916213118 has 32 divisors (see below), whose sum is σ = 4045776000. Its totient is φ = 603373536.

The previous prime is 1916213083. The next prime is 1916213141. The reversal of 1916213118 is 8113126191.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15705 + ... + 63867.

It is an arithmetic number, because the mean of its divisors is an integer number (126430500).

Almost surely, 2^1916213118 is an apocalyptic number.

1916213118 is an abundant number, since it is smaller than the sum of its proper divisors (2129562882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916213118 is a wasteful number, since it uses less digits than its factorization.

1916213118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48536.

The product of its digits is 2592, while the sum is 33.

The square root of 1916213118 is about 43774.5715912789. The cubic root of 1916213118 is about 1242.0753310409.

The spelling of 1916213118 in words is "one billion, nine hundred sixteen million, two hundred thirteen thousand, one hundred eighteen".