20809614294 has 36 divisors (see below), whose sum is σ = 52448723964. Its totient is φ = 5945603832.

The previous prime is 20809614253. The next prime is 20809614401. The reversal of 20809614294 is 49241690802.

20809614294 is a `hidden beast` number, since 2 + 0 + 8 + 0 + 9 + 614 + 29 + 4 = 666.

20809614294 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 an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 11795952 + ... + 11797715.

It is an arithmetic number, because the mean of its divisors is an integer number (1456908999).

Almost surely, 2^20809614294 is an apocalyptic number.

20809614294 is an abundant number, since it is smaller than the sum of its proper divisors (31639109670).

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

20809614294 is a wasteful number, since it uses less digits than its factorization.

20809614294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23593689 (or 23593679 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 20809614294 in words is "twenty billion, eight hundred nine million, six hundred fourteen thousand, two hundred ninety-four".