18410739553 has 2 divisors, whose sum is σ = 18410739554. Its totient is φ = 18410739552.

The previous prime is 18410739511. The next prime is 18410739563. The reversal of 18410739553 is 35593701481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10976333824 + 7434405729 = 104768^2 + 86223^2 .

It is a cyclic number.

It is not a de Polignac number, because 18410739553 - 2²¹ = 18408642401 is a prime.

It is not a weakly prime, because it can be changed into another prime (18410739563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9205369776 + 9205369777.

It is an arithmetic number, because the mean of its divisors is an integer number (9205369777).

Almost surely, 2^18410739553 is an apocalyptic number.

It is an amenable number.

18410739553 is a deficient number, since it is larger than the sum of its proper divisors (1).

18410739553 is an equidigital number, since it uses as much as digits as its factorization.

18410739553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 18410739553 in words is "eighteen billion, four hundred ten million, seven hundred thirty-nine thousand, five hundred fifty-three".