18453709741 has 2 divisors, whose sum is σ = 18453709742. Its totient is φ = 18453709740.

The previous prime is 18453709649. The next prime is 18453709753. The reversal of 18453709741 is 14790735481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12599164516 + 5854545225 = 112246^2 + 76515^2 .

It is a cyclic number.

It is not a de Polignac number, because 18453709741 - 2²¹ = 18451612589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18453704741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9226854870 + 9226854871.

It is an arithmetic number, because the mean of its divisors is an integer number (9226854871).

Almost surely, 2^18453709741 is an apocalyptic number.

It is an amenable number.

18453709741 is a deficient number, since it is larger than the sum of its proper divisors (1).

18453709741 is an equidigital number, since it uses as much as digits as its factorization.

18453709741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 18453709741 in words is "eighteen billion, four hundred fifty-three million, seven hundred nine thousand, seven hundred forty-one".