18833873648208 has 80 divisors (see below), whose sum is σ = 49025802356160. Its totient is φ = 6230045601792.

The previous prime is 18833873648189. The next prime is 18833873648221. The reversal of 18833873648208 is 80284637833881.

It is a super-2 number, since 2×18833873648208² (a number of 27 digits) contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 14544510 + ... + 15786402.

It is an arithmetic number, because the mean of its divisors is an integer number (612822529452).

Almost surely, 2^{18833873648208} is an apocalyptic number.

It is an amenable number.

18833873648208 is an abundant number, since it is smaller than the sum of its proper divisors (30191928707952).

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

18833873648208 is a wasteful number, since it uses less digits than its factorization.

18833873648208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244316 (or 1244310 counting only the distinct ones).

The product of its (nonzero) digits is 297271296, while the sum is 69.

The spelling of 18833873648208 in words is "eighteen trillion, eight hundred thirty-three billion, eight hundred seventy-three million, six hundred forty-eight thousand, two hundred eight".