2319791643 has 80 divisors (see below), whose sum is σ = 4013560320. Its totient is φ = 1323117504.

The previous prime is 2319791611. The next prime is 2319791653. The reversal of 2319791643 is 3461979132.

It is not a de Polignac number, because 2319791643 - 2⁵ = 2319791611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2319791653) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 939096 + ... + 941562.

It is an arithmetic number, because the mean of its divisors is an integer number (50169504).

Almost surely, 2^2319791643 is an apocalyptic number.

2319791643 is a deficient number, since it is larger than the sum of its proper divisors (1693768677).

2319791643 is a wasteful number, since it uses less digits than its factorization.

2319791643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558 (or 2549 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 2319791643 is about 48164.2153782245. The cubic root of 2319791643 is about 1323.7815580436.

The spelling of 2319791643 in words is "two billion, three hundred nineteen million, seven hundred ninety-one thousand, six hundred forty-three".