20962454717 has 2 divisors, whose sum is σ = 20962454718. Its totient is φ = 20962454716.

The previous prime is 20962454699. The next prime is 20962454731. The reversal of 20962454717 is 71745426902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12780528601 + 8181926116 = 113051^2 + 90454^2 .

It is a cyclic number.

It is not a de Polignac number, because 20962454717 - 2¹⁰ = 20962453693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20962456717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10481227358 + 10481227359.

It is an arithmetic number, because the mean of its divisors is an integer number (10481227359).

Almost surely, 2^20962454717 is an apocalyptic number.

It is an amenable number.

20962454717 is a deficient number, since it is larger than the sum of its proper divisors (1).

20962454717 is an equidigital number, since it uses as much as digits as its factorization.

20962454717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 20962454717 in words is "twenty billion, nine hundred sixty-two million, four hundred fifty-four thousand, seven hundred seventeen".