18413385488953 has 48 divisors (see below), whose sum is σ = 24050166389760. Its totient is φ = 13717817182080.

The previous prime is 18413385488941. The next prime is 18413385488989. The reversal of 18413385488953 is 35988458331481.

It is not a de Polignac number, because 18413385488953 - 2¹⁷ = 18413385357881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18413385408953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 390328 + ... + 6081046.

It is an arithmetic number, because the mean of its divisors is an integer number (501045133120).

Almost surely, 2^{18413385488953} is an apocalyptic number.

18413385488953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18413385488953 is a deficient number, since it is larger than the sum of its proper divisors (5636780900807).

18413385488953 is a wasteful number, since it uses less digits than its factorization.

18413385488953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690838 (or 5690807 counting only the distinct ones).

The product of its digits is 398131200, while the sum is 70.

The spelling of 18413385488953 in words is "eighteen trillion, four hundred thirteen billion, three hundred eighty-five million, four hundred eighty-eight thousand, nine hundred fifty-three".