18428710464 has 280 divisors, whose sum is σ = 58596215040. Its totient is φ = 5706215424.

The previous prime is 18428710459. The next prime is 18428710471. The reversal of 18428710464 is 46401782481.

18428710464 is a `hidden beast` number, since 184 + 2 + 8 + 7 + 1 + 0 + 464 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6960789 + ... + 6963435.

Almost surely, 2^18428710464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18428710464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29298107520).

18428710464 is an abundant number, since it is smaller than the sum of its proper divisors (40167504576).

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

18428710464 is a wasteful number, since it uses less digits than its factorization.

18428710464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 18428710464 in words is "eighteen billion, four hundred twenty-eight million, seven hundred ten thousand, four hundred sixty-four".