1916960365 has 4 divisors (see below), whose sum is σ = 2300352444. Its totient is φ = 1533568288.

The previous prime is 1916960347. The next prime is 1916960387. The reversal of 1916960365 is 5630696191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 519247369 + 1397712996 = 22787^2 + 37386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1916960365 - 2⁵ = 1916960333 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 191696032 + ... + 191696041.

It is an arithmetic number, because the mean of its divisors is an integer number (575088111).

Almost surely, 2^1916960365 is an apocalyptic number.

It is an amenable number.

1916960365 is a deficient number, since it is larger than the sum of its proper divisors (383392079).

1916960365 is an equidigital number, since it uses as much as digits as its factorization.

1916960365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383392078.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 1916960365 is about 43783.1059313978. The cubic root of 1916960365 is about 1242.2367634057.

The spelling of 1916960365 in words is "one billion, nine hundred sixteen million, nine hundred sixty thousand, three hundred sixty-five".