2191790614 has 8 divisors (see below), whose sum is σ = 3540584880. Its totient is φ = 1011595656.

The previous prime is 2191790593. The next prime is 2191790651. The reversal of 2191790614 is 4160971912.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42149794 + ... + 42149845.

It is an arithmetic number, because the mean of its divisors is an integer number (442573110).

Almost surely, 2^2191790614 is an apocalyptic number.

2191790614 is a deficient number, since it is larger than the sum of its proper divisors (1348794266).

2191790614 is a wasteful number, since it uses less digits than its factorization.

2191790614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84299654.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 2191790614 is about 46816.5634578191. The cubic root of 2191790614 is about 1298.9716945128.

The spelling of 2191790614 in words is "two billion, one hundred ninety-one million, seven hundred ninety thousand, six hundred fourteen".