20941877694 has 16 divisors (see below), whose sum is σ = 41903380368. Its totient is φ = 6977355072.

The previous prime is 20941877687. The next prime is 20941877699. The reversal of 20941877694 is 49677814902.

It is a happy number.

20941877694 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20941877699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803817 + ... + 829460.

It is an arithmetic number, because the mean of its divisors is an integer number (2618961273).

Almost surely, 2^20941877694 is an apocalyptic number.

20941877694 is an abundant number, since it is smaller than the sum of its proper divisors (20961502674).

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

20941877694 is a wasteful number, since it uses less digits than its factorization.

20941877694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635419.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 20941877694 in words is "twenty billion, nine hundred forty-one million, eight hundred seventy-seven thousand, six hundred ninety-four".