1916393875 has 32 divisors (see below), whose sum is σ = 2658412224. Its totient is φ = 1367392000.

The previous prime is 1916393851. The next prime is 1916393881. The reversal of 1916393875 is 5783936191.

It is a happy number.

It is not a de Polignac number, because 1916393875 - 2¹⁵ = 1916361107 is a prime.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 59727 + ... + 86023.

It is an arithmetic number, because the mean of its divisors is an integer number (83075382).

Almost surely, 2^1916393875 is an apocalyptic number.

1916393875 is a deficient number, since it is larger than the sum of its proper divisors (742018349).

1916393875 is a wasteful number, since it uses less digits than its factorization.

1916393875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26376 (or 26366 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 52.

The square root of 1916393875 is about 43776.6361773035. The cubic root of 1916393875 is about 1242.1143849348.

The spelling of 1916393875 in words is "one billion, nine hundred sixteen million, three hundred ninety-three thousand, eight hundred seventy-five".