18685350276 has 24 divisors (see below), whose sum is σ = 43601365920. Its totient is φ = 6228133632.

The previous prime is 18685350241. The next prime is 18685350283. The reversal of 18685350276 is 67205358681.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420180 + ... + 462516.

It is an arithmetic number, because the mean of its divisors is an integer number (1816723580).

Almost surely, 2^18685350276 is an apocalyptic number.

It is an amenable number.

18685350276 is an abundant number, since it is smaller than the sum of its proper divisors (24916015644).

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

18685350276 is a wasteful number, since it uses less digits than its factorization.

18685350276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79123 (or 79121 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 18685350276 in words is "eighteen billion, six hundred eighty-five million, three hundred fifty thousand, two hundred seventy-six".