20200011984769 has 2 divisors, whose sum is σ = 20200011984770. Its totient is φ = 20200011984768.

The previous prime is 20200011984727. The next prime is 20200011984799. The reversal of 20200011984769 is 96748911000202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18590868994369 + 1609142990400 = 4311713^2 + 1268520^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200011984769 - 2²⁵ = 20199978430337 is a prime.

It is a super-2 number, since 2×20200011984769² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20200011984799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100005992384 + 10100005992385.

It is an arithmetic number, because the mean of its divisors is an integer number (10100005992385).

Almost surely, 2^{20200011984769} is an apocalyptic number.

It is an amenable number.

20200011984769 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200011984769 is an equidigital number, since it uses as much as digits as its factorization.

20200011984769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 20200011984769 in words is "twenty trillion, two hundred billion, eleven million, nine hundred eighty-four thousand, seven hundred sixty-nine".