19775622676 has 12 divisors (see below), whose sum is σ = 34638329908. Its totient is φ = 9878956992.

The previous prime is 19775622673. The next prime is 19775622683. The reversal of 19775622676 is 67622657791.

It can be written as a sum of positive squares in 2 ways, for example, as 8766576900 + 11009045776 = 93630^2 + 104924^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19775622676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19775622673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208561 + ... + 2217496.

Almost surely, 2^19775622676 is an apocalyptic number.

It is an amenable number.

19775622676 is a deficient number, since it is larger than the sum of its proper divisors (14862707232).

19775622676 is a wasteful number, since it uses less digits than its factorization.

19775622676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427178 (or 4427176 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 58.

The spelling of 19775622676 in words is "nineteen billion, seven hundred seventy-five million, six hundred twenty-two thousand, six hundred seventy-six".