4091941919 has 4 divisors (see below), whose sum is σ = 4406706696. Its totient is φ = 3777177144.

The previous prime is 4091941879. The next prime is 4091941943. The reversal of 4091941919 is 9191491904.

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

It is not a de Polignac number, because 4091941919 - 2⁸ = 4091941663 is a prime.

It is a super-2 number, since 2×4091941919² = 33487977336938805122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091941949) 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, 157382369 + ... + 157382394.

It is an arithmetic number, because the mean of its divisors is an integer number (1101676674).

Almost surely, 2^4091941919 is an apocalyptic number.

4091941919 is a deficient number, since it is larger than the sum of its proper divisors (314764777).

4091941919 is a wasteful number, since it uses less digits than its factorization.

4091941919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314764776.

The product of its (nonzero) digits is 104976, while the sum is 47.

The square root of 4091941919 is about 63968.2883857306. The cubic root of 4091941919 is about 1599.4714294389.

The spelling of 4091941919 in words is "four billion, ninety-one million, nine hundred forty-one thousand, nine hundred nineteen".