2192791694 has 4 divisors (see below), whose sum is σ = 3289187544. Its totient is φ = 1096395846.

The previous prime is 2192791681. The next prime is 2192791697. The reversal of 2192791694 is 4961972912.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192791697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548197922 + ... + 548197925.

It is an arithmetic number, because the mean of its divisors is an integer number (822296886).

Almost surely, 2^2192791694 is an apocalyptic number.

2192791694 is a deficient number, since it is larger than the sum of its proper divisors (1096395850).

2192791694 is a wasteful number, since it uses less digits than its factorization.

2192791694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096395849.

The product of its digits is 489888, while the sum is 50.

The square root of 2192791694 is about 46827.2537524891. The cubic root of 2192791694 is about 1299.1694288292.

The spelling of 2192791694 in words is "two billion, one hundred ninety-two million, seven hundred ninety-one thousand, six hundred ninety-four".