18894128050524 has 48 divisors (see below), whose sum is σ = 44198816297888. Its totient is φ = 6281969810688.

The previous prime is 18894128050507. The next prime is 18894128050571. The reversal of 18894128050524 is 42505082149881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221373762 + ... + 221459094.

Almost surely, 2^{18894128050524} is an apocalyptic number.

It is an amenable number.

18894128050524 is an abundant number, since it is smaller than the sum of its proper divisors (25304688247364).

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

18894128050524 is a wasteful number, since it uses less digits than its factorization.

18894128050524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132214 (or 132212 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 57.

The spelling of 18894128050524 in words is "eighteen trillion, eight hundred ninety-four billion, one hundred twenty-eight million, fifty thousand, five hundred twenty-four".