8018663047 has 2 divisors, whose sum is σ = 8018663048. Its totient is φ = 8018663046.

The previous prime is 8018662943. The next prime is 8018663057. The reversal of 8018663047 is 7403668108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8018663047 - 2²³ = 8010274439 is a prime.

It is a super-2 number, since 2×8018663047² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8018662994 and 8018663012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8018663057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4009331523 + 4009331524.

It is an arithmetic number, because the mean of its divisors is an integer number (4009331524).

Almost surely, 2^8018663047 is an apocalyptic number.

8018663047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8018663047 is an equidigital number, since it uses as much as digits as its factorization.

8018663047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 8018663047 is about 89546.9879281263. The cubic root of 8018663047 is about 2001.5540460743.

The spelling of 8018663047 in words is "eight billion, eighteen million, six hundred sixty-three thousand, forty-seven".