20120306475762 has 48 divisors (see below), whose sum is σ = 45104344660440. Its totient is φ = 6474480585216.

The previous prime is 20120306475757. The next prime is 20120306475803. The reversal of 20120306475762 is 26757460302102.

20120306475762 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 0 + 30 + 6 + 47 + 576 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10212108618321 + 9908197857441 = 3195639^2 + 3147729^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282688 + ... + 6349844.

Almost surely, 2^{20120306475762} is an apocalyptic number.

20120306475762 is an abundant number, since it is smaller than the sum of its proper divisors (24984038184678).

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

20120306475762 is a wasteful number, since it uses less digits than its factorization.

20120306475762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073547 (or 6073544 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

Adding to 20120306475762 its reverse (26757460302102), we get a palindrome (46877766777864).

The spelling of 20120306475762 in words is "twenty trillion, one hundred twenty billion, three hundred six million, four hundred seventy-five thousand, seven hundred sixty-two".