1916715918 has 16 divisors (see below), whose sum is σ = 4128311376. Its totient is φ = 589758720.

The previous prime is 1916715901. The next prime is 1916715973. The reversal of 1916715918 is 8195176191.

It is a congruent number.

It is an unprimeable number.

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, 12286563 + ... + 12286718.

It is an arithmetic number, because the mean of its divisors is an integer number (258019461).

Almost surely, 2^1916715918 is an apocalyptic number.

1916715918 is an abundant number, since it is smaller than the sum of its proper divisors (2211595458).

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

1916715918 is a wasteful number, since it uses less digits than its factorization.

1916715918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24573299.

The product of its digits is 136080, while the sum is 48.

The square root of 1916715918 is about 43780.3142747971. The cubic root of 1916715918 is about 1242.1839586349.

The spelling of 1916715918 in words is "one billion, nine hundred sixteen million, seven hundred fifteen thousand, nine hundred eighteen".