20117047763 has 2 divisors, whose sum is σ = 20117047764. Its totient is φ = 20117047762.

The previous prime is 20117047711. The next prime is 20117047861. The reversal of 20117047763 is 36774071102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20117047763 - 2²⁶ = 20049938899 is a prime.

It is a super-2 number, since 2×20117047763² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20117047703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058523881 + 10058523882.

It is an arithmetic number, because the mean of its divisors is an integer number (10058523882).

Almost surely, 2^20117047763 is an apocalyptic number.

20117047763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20117047763 is an equidigital number, since it uses as much as digits as its factorization.

20117047763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 20117047763 in words is "twenty billion, one hundred seventeen million, forty-seven thousand, seven hundred sixty-three".