2291916919 has 8 divisors (see below), whose sum is σ = 2318228352. Its totient is φ = 2265739320.

The previous prime is 2291916917. The next prime is 2291916923. The reversal of 2291916919 is 9196191922.

2291916919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2291916919 - 2¹ = 2291916917 is a prime.

It is a super-2 number, since 2×2291916919² = 10505766327196905122, 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 (2291916911) 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, 1192 + ... + 67714.

It is an arithmetic number, because the mean of its divisors is an integer number (289778544).

Almost surely, 2^2291916919 is an apocalyptic number.

2291916919 is a deficient number, since it is larger than the sum of its proper divisors (26311433).

2291916919 is a wasteful number, since it uses less digits than its factorization.

2291916919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66917.

The product of its digits is 157464, while the sum is 49.

The square root of 2291916919 is about 47873.9691168384. The cubic root of 2291916919 is about 1318.4579710682.

The spelling of 2291916919 in words is "two billion, two hundred ninety-one million, nine hundred sixteen thousand, nine hundred nineteen".