1916584113 has 4 divisors (see below), whose sum is σ = 2555445488. Its totient is φ = 1277722740.

The previous prime is 1916584099. The next prime is 1916584147. The reversal of 1916584113 is 3114856191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1916584113 - 2⁵ = 1916584081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1916584013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319430683 + ... + 319430688.

It is an arithmetic number, because the mean of its divisors is an integer number (638861372).

Almost surely, 2^1916584113 is an apocalyptic number.

It is an amenable number.

1916584113 is a deficient number, since it is larger than the sum of its proper divisors (638861375).

1916584113 is an equidigital number, since it uses as much as digits as its factorization.

1916584113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638861374.

The product of its digits is 25920, while the sum is 39.

The square root of 1916584113 is about 43778.8089490795. The cubic root of 1916584113 is about 1242.1554846171.

The spelling of 1916584113 in words is "one billion, nine hundred sixteen million, five hundred eighty-four thousand, one hundred thirteen".