2194101967028 has 6 divisors (see below), whose sum is σ = 3839678442306. Its totient is φ = 1097050983512.

The previous prime is 2194101967021. The next prime is 2194101967033. The reversal of 2194101967028 is 8207691014912.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1857583636624 + 336518330404 = 1362932^2 + 580102^2 .

It is a super-2 number, since 2×2194101967028² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194101967021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274262745875 + ... + 274262745882.

It is an arithmetic number, because the mean of its divisors is an integer number (639946407051).

Almost surely, 2^{2194101967028} is an apocalyptic number.

It is an amenable number.

2194101967028 is a deficient number, since it is larger than the sum of its proper divisors (1645576475278).

2194101967028 is a wasteful number, since it uses less digits than its factorization.

2194101967028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548525491761 (or 548525491759 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 2194101967028 in words is "two trillion, one hundred ninety-four billion, one hundred one million, nine hundred sixty-seven thousand, twenty-eight".