28643473899264 has 288 divisors, whose sum is σ = 91879063682560. Its totient is φ = 7738774732800.

The previous prime is 28643473899263. The next prime is 28643473899281. The reversal of 28643473899264 is 46299837434682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28643473899263) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 55000734 + ... + 55519074.

Almost surely, 2^{28643473899264} is an apocalyptic number.

28643473899264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28643473899264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45939531841280).

28643473899264 is an abundant number, since it is smaller than the sum of its proper divisors (63235589783296).

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

28643473899264 is a wasteful number, since it uses less digits than its factorization.

28643473899264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518927 (or 518913 counting only the distinct ones).

The product of its digits is 3009871872, while the sum is 75.

The spelling of 28643473899264 in words is "twenty-eight trillion, six hundred forty-three billion, four hundred seventy-three million, eight hundred ninety-nine thousand, two hundred sixty-four".