1916505941 has 8 divisors (see below), whose sum is σ = 2191053504. Its totient is φ = 1642148640.

The previous prime is 1916505893. The next prime is 1916505947. The reversal of 1916505941 is 1495056191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1916505941 - 2²² = 1912311637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916505947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25280 + ... + 66873.

It is an arithmetic number, because the mean of its divisors is an integer number (273881688).

Almost surely, 2^1916505941 is an apocalyptic number.

It is an amenable number.

1916505941 is a deficient number, since it is larger than the sum of its proper divisors (274547563).

1916505941 is an equidigital number, since it uses as much as digits as its factorization.

1916505941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95131.

The product of its (nonzero) digits is 48600, while the sum is 41.

The square root of 1916505941 is about 43777.9161335941. The cubic root of 1916505941 is about 1242.1385963942.

The spelling of 1916505941 in words is "one billion, nine hundred sixteen million, five hundred five thousand, nine hundred forty-one".