18453866784007 has 2 divisors, whose sum is σ = 18453866784008. Its totient is φ = 18453866784006.

The previous prime is 18453866783987. The next prime is 18453866784029. The reversal of 18453866784007 is 70048766835481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18453866784007 - 2²⁷ = 18453732566279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18453866787007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9226933392003 + 9226933392004.

It is an arithmetic number, because the mean of its divisors is an integer number (9226933392004).

Almost surely, 2^{18453866784007} is an apocalyptic number.

18453866784007 is a deficient number, since it is larger than the sum of its proper divisors (1).

18453866784007 is an equidigital number, since it uses as much as digits as its factorization.

18453866784007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 18453866784007 in words is "eighteen trillion, four hundred fifty-three billion, eight hundred sixty-six million, seven hundred eighty-four thousand, seven".