20444213763 has 12 divisors (see below), whose sum is σ = 29862335880. Its totient is φ = 13476335136.

The previous prime is 20444213761. The next prime is 20444213767. The reversal of 20444213763 is 36731244402.

20444213763 is a `hidden beast` number, since 20 + 4 + 442 + 137 + 63 = 666.

It is not a de Polignac number, because 20444213763 - 2¹ = 20444213761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20444213761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12760881 + ... + 12762482.

It is an arithmetic number, because the mean of its divisors is an integer number (2488527990).

Almost surely, 2^20444213763 is an apocalyptic number.

20444213763 is a deficient number, since it is larger than the sum of its proper divisors (9418122117).

20444213763 is a wasteful number, since it uses less digits than its factorization.

20444213763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25523458 (or 25523455 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 20444213763 in words is "twenty billion, four hundred forty-four million, two hundred thirteen thousand, seven hundred sixty-three".