18523533600001 has 8 divisors (see below), whose sum is σ = 19365443210880. Its totient is φ = 17718162562276.

The previous prime is 18523533599911. The next prime is 18523533600023. The reversal of 18523533600001 is 10000633532581.

It is a de Polignac number, because none of the positive numbers 2^k-18523533600001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18523533600301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 761208085 + ... + 761232418.

It is an arithmetic number, because the mean of its divisors is an integer number (2420680401360).

Almost surely, 2^{18523533600001} is an apocalyptic number.

It is an amenable number.

18523533600001 is a deficient number, since it is larger than the sum of its proper divisors (841909610879).

18523533600001 is an frugal number, since it uses more digits than its factorization.

18523533600001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522440572 (or 1522440526 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 18523533600001 in words is "eighteen trillion, five hundred twenty-three billion, five hundred thirty-three million, six hundred thousand, one".