18501853350053 has 8 divisors (see below), whose sum is σ = 19630096243200. Its totient is φ = 17378043632320.

The previous prime is 18501853350049. The next prime is 18501853350119. The reversal of 18501853350053 is 35005335810581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18501853350053 - 2² = 18501853350049 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 (18501853350553) 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, 1108285253 + ... + 1108301946.

It is an arithmetic number, because the mean of its divisors is an integer number (2453762030400).

Almost surely, 2^{18501853350053} is an apocalyptic number.

It is an amenable number.

18501853350053 is a deficient number, since it is larger than the sum of its proper divisors (1128242893147).

18501853350053 is a wasteful number, since it uses less digits than its factorization.

18501853350053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216587707.

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 18501853350053 in words is "eighteen trillion, five hundred one billion, eight hundred fifty-three million, three hundred fifty thousand, fifty-three".