18423537003552 has 48 divisors (see below), whose sum is σ = 48944456759520. Its totient is φ = 6067188890112.

The previous prime is 18423537003533. The next prime is 18423537003559. The reversal of 18423537003552 is 25530073532481.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (18423537003559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156087477 + ... + 1156103412.

It is an arithmetic number, because the mean of its divisors is an integer number (1019676182490).

Almost surely, 2^{18423537003552} is an apocalyptic number.

18423537003552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18423537003552 is an abundant number, since it is smaller than the sum of its proper divisors (30520919755968).

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

18423537003552 is a wasteful number, since it uses less digits than its factorization.

18423537003552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312190985 (or 2312190977 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 18423537003552 in words is "eighteen trillion, four hundred twenty-three billion, five hundred thirty-seven million, three thousand, five hundred fifty-two".