20787879594244 has 24 divisors (see below), whose sum is σ = 41575905806400. Its totient is φ = 8909059836576.

The previous prime is 20787879594227. The next prime is 20787879594253. The reversal of 20787879594244 is 44249597878702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7912059 + ... + 10206685.

It is an arithmetic number, because the mean of its divisors is an integer number (1732329408600).

Almost surely, 2^{20787879594244} is an apocalyptic number.

It is an amenable number.

20787879594244 is an abundant number, since it is smaller than the sum of its proper divisors (20788026212156).

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

20787879594244 is a wasteful number, since it uses less digits than its factorization.

20787879594244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618187 (or 2618185 counting only the distinct ones).

The product of its (nonzero) digits is 2275983360, while the sum is 76.

The spelling of 20787879594244 in words is "twenty trillion, seven hundred eighty-seven billion, eight hundred seventy-nine million, five hundred ninety-four thousand, two hundred forty-four".