18636348308853 has 8 divisors (see below), whose sum is σ = 27107415722016. Its totient is φ = 11294756550800.

The previous prime is 18636348308843. The next prime is 18636348308881. The reversal of 18636348308853 is 35880384363681.

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 18636348308853 - 2²⁶ = 18636281199989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18636348308813) 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, 282368913738 + ... + 282368913803.

It is an arithmetic number, because the mean of its divisors is an integer number (3388426965252).

Almost surely, 2^{18636348308853} is an apocalyptic number.

It is an amenable number.

18636348308853 is a deficient number, since it is larger than the sum of its proper divisors (8471067413163).

18636348308853 is a wasteful number, since it uses less digits than its factorization.

18636348308853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564737827555.

The product of its (nonzero) digits is 238878720, while the sum is 66.

The spelling of 18636348308853 in words is "eighteen trillion, six hundred thirty-six billion, three hundred forty-eight million, three hundred eight thousand, eight hundred fifty-three".