18049032269520 has 320 divisors, whose sum is σ = 69536534662656. Its totient is φ = 3777875804160.

The previous prime is 18049032269501. The next prime is 18049032269533. The reversal of 18049032269520 is 2596223094081.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 7483401 + ... + 9596840.

Almost surely, 2^{18049032269520} is an apocalyptic number.

18049032269520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18049032269520 is an abundant number, since it is smaller than the sum of its proper divisors (51487502393136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18049032269520 is a wasteful number, since it uses less digits than its factorization.

18049032269520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17080318 (or 17080312 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 18049032269520 in words is "eighteen trillion, forty-nine billion, thirty-two million, two hundred sixty-nine thousand, five hundred twenty".