18745950463 has 2 divisors, whose sum is σ = 18745950464. Its totient is φ = 18745950462.

The previous prime is 18745950451. The next prime is 18745950469. The reversal of 18745950463 is 36405954781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18745950463 - 2⁹ = 18745949951 is a prime.

It is a super-2 number, since 2×18745950463² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18745950463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18745950469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9372975231 + 9372975232.

It is an arithmetic number, because the mean of its divisors is an integer number (9372975232).

Almost surely, 2^18745950463 is an apocalyptic number.

18745950463 is a deficient number, since it is larger than the sum of its proper divisors (1).

18745950463 is an equidigital number, since it uses as much as digits as its factorization.

18745950463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 18745950463 in words is "eighteen billion, seven hundred forty-five million, nine hundred fifty thousand, four hundred sixty-three".