20047177022786 has 4 divisors (see below), whose sum is σ = 30070765534182. Its totient is φ = 10023588511392.

The previous prime is 20047177022773. The next prime is 20047177022797. The reversal of 20047177022786 is 68722077174002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17496911750761 + 2550265272025 = 4182931^2 + 1596955^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011794255695 + ... + 5011794255698.

Almost surely, 2^{20047177022786} is an apocalyptic number.

20047177022786 is a deficient number, since it is larger than the sum of its proper divisors (10023588511396).

20047177022786 is a wasteful number, since it uses less digits than its factorization.

20047177022786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10023588511395.

The product of its (nonzero) digits is 3687936, while the sum is 53.

The spelling of 20047177022786 in words is "twenty trillion, forty-seven billion, one hundred seventy-seven million, twenty-two thousand, seven hundred eighty-six".