18037249653 has 16 divisors (see below), whose sum is σ = 24962642432. Its totient is φ = 11572632000.

The previous prime is 18037249649. The next prime is 18037249669. The reversal of 18037249653 is 35694273081.

It is not a de Polignac number, because 18037249653 - 2² = 18037249649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18037249673) 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 in 15 ways as a sum of consecutive naturals, for example, 518938 + ... + 552603.

It is an arithmetic number, because the mean of its divisors is an integer number (1560165152).

It is a 1-persistent number, because it is pandigital, but 2⋅18037249653 = 36074499306 is not.

Almost surely, 2^18037249653 is an apocalyptic number.

It is an amenable number.

18037249653 is a deficient number, since it is larger than the sum of its proper divisors (6925392779).

18037249653 is a wasteful number, since it uses less digits than its factorization.

18037249653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071756.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 18037249653 in words is "eighteen billion, thirty-seven million, two hundred forty-nine thousand, six hundred fifty-three".