20768026776 has 64 divisors (see below), whose sum is σ = 59361465600. Its totient is φ = 5931297408.

The previous prime is 20768026771. The next prime is 20768026789. The reversal of 20768026776 is 67762086702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20768026771) 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 15 ways as a sum of consecutive naturals, for example, 409306 + ... + 457238.

It is an arithmetic number, because the mean of its divisors is an integer number (927522900).

Almost surely, 2^20768026776 is an apocalyptic number.

It is an amenable number.

20768026776 is an abundant number, since it is smaller than the sum of its proper divisors (38593438824).

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

20768026776 is a wasteful number, since it uses less digits than its factorization.

20768026776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50528 (or 50524 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 20768026776 in words is "twenty billion, seven hundred sixty-eight million, twenty-six thousand, seven hundred seventy-six".