2194881769630 has 32 divisors (see below), whose sum is σ = 4448980297728. Its totient is φ = 772392410400.

The previous prime is 2194881769621. The next prime is 2194881769631. The reversal of 2194881769630 is 369671884912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194881769631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321826762 + ... + 321833581.

It is an arithmetic number, because the mean of its divisors is an integer number (139030634304).

Almost surely, 2^{2194881769630} is an apocalyptic number.

2194881769630 is an abundant number, since it is smaller than the sum of its proper divisors (2254098528098).

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

2194881769630 is a wasteful number, since it uses less digits than its factorization.

2194881769630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643660392.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 2194881769630 in words is "two trillion, one hundred ninety-four billion, eight hundred eighty-one million, seven hundred sixty-nine thousand, six hundred thirty".