18446745136063 has 2 divisors, whose sum is σ = 18446745136064. Its totient is φ = 18446745136062.

The previous prime is 18446745135983. The next prime is 18446745136067. The reversal of 18446745136063 is 36063154764481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18446745136063 is a prime.

It is a super-2 number, since 2×18446745136063² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18446745135989 and 18446745136007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18446745136067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9223372568031 + 9223372568032.

It is an arithmetic number, because the mean of its divisors is an integer number (9223372568032).

Almost surely, 2^{18446745136063} is an apocalyptic number.

18446745136063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18446745136063 is an equidigital number, since it uses as much as digits as its factorization.

18446745136063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 18446745136063 in words is "eighteen trillion, four hundred forty-six billion, seven hundred forty-five million, one hundred thirty-six thousand, sixty-three".