18383403501744 has 40 divisors (see below), whose sum is σ = 47951531476992. Its totient is φ = 6068307950400.

The previous prime is 18383403501739. The next prime is 18383403501769. The reversal of 18383403501744 is 44710530438381.

It is a super-2 number, since 2×18383403501744² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1859158032 + ... + 1859167919.

Almost surely, 2^{18383403501744} is an apocalyptic number.

It is an amenable number.

18383403501744 is an abundant number, since it is smaller than the sum of its proper divisors (29568127975248).

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

18383403501744 is a wasteful number, since it uses less digits than its factorization.

18383403501744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718326065 (or 3718326059 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 18383403501744 in words is "eighteen trillion, three hundred eighty-three billion, four hundred three million, five hundred one thousand, seven hundred forty-four".