20302907746 has 12 divisors (see below), whose sum is σ = 33474629286. Its totient is φ = 9228594320.

The previous prime is 20302907731. The next prime is 20302907771. The reversal of 20302907746 is 64770920302.

It can be written as a sum of positive squares in only one way, i.e., 19513016721 + 789891025 = 139689^2 + 28105^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20302907699 and 20302907708.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41947915 + ... + 41948398.

Almost surely, 2^20302907746 is an apocalyptic number.

20302907746 is a deficient number, since it is larger than the sum of its proper divisors (13171721540).

20302907746 is a wasteful number, since it uses less digits than its factorization.

20302907746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83896337 (or 83896326 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 20302907746 in words is "twenty billion, three hundred two million, nine hundred seven thousand, seven hundred forty-six".