18437053824 has 384 divisors, whose sum is σ = 63355855680. Its totient is φ = 5036359680.

The previous prime is 18437053823. The next prime is 18437053829. The reversal of 18437053824 is 42835073481.

18437053824 is a `hidden beast` number, since 1 + 8 + 43 + 70 + 538 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 18437053824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18437053823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18199942 + ... + 18200954.

Almost surely, 2^18437053824 is an apocalyptic number.

18437053824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18437053824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31677927840).

18437053824 is an abundant number, since it is smaller than the sum of its proper divisors (44918801856).

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

18437053824 is a wasteful number, since it uses less digits than its factorization.

18437053824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 18437053824 in words is "eighteen billion, four hundred thirty-seven million, fifty-three thousand, eight hundred twenty-four".