2194763694 has 16 divisors (see below), whose sum is σ = 4390222080. Its totient is φ = 731472120.

The previous prime is 2194763693. The next prime is 2194763719. The reversal of 2194763694 is 4963674912.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194763693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17979 + ... + 68649.

It is an arithmetic number, because the mean of its divisors is an integer number (274388880).

Almost surely, 2^2194763694 is an apocalyptic number.

2194763694 is an abundant number, since it is smaller than the sum of its proper divisors (2195458386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2194763694 is a wasteful number, since it uses less digits than its factorization.

2194763694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57895.

The product of its digits is 1959552, while the sum is 51.

The square root of 2194763694 is about 46848.3051347645. The cubic root of 2194763694 is about 1299.5587642601.

The spelling of 2194763694 in words is "two billion, one hundred ninety-four million, seven hundred sixty-three thousand, six hundred ninety-four".