20773471712 has 48 divisors (see below), whose sum is σ = 46985121792. Its totient is φ = 8856286080.

The previous prime is 20773471711. The next prime is 20773471757. The reversal of 20773471712 is 21717437702.

It is a self number, because there is not a number n which added to its sum of digits gives 20773471712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20773471711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199988 + ... + 285555.

It is an arithmetic number, because the mean of its divisors is an integer number (978856704).

Almost surely, 2^20773471712 is an apocalyptic number.

It is an amenable number.

20773471712 is an abundant number, since it is smaller than the sum of its proper divisors (26211650080).

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

20773471712 is a wasteful number, since it uses less digits than its factorization.

20773471712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485751 (or 485743 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 41.

The spelling of 20773471712 in words is "twenty billion, seven hundred seventy-three million, four hundred seventy-one thousand, seven hundred twelve".