28426384896 has 480 divisors, whose sum is σ = 100509504480. Its totient is φ = 7051935744.

The previous prime is 28426384859. The next prime is 28426384919. The reversal of 28426384896 is 69848362482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16632490 + ... + 16634198.

It is an arithmetic number, because the mean of its divisors is an integer number (209394801).

Almost surely, 2^28426384896 is an apocalyptic number.

28426384896 is a gapful number since it is divisible by the number (26) 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 28426384896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50254752240).

28426384896 is an abundant number, since it is smaller than the sum of its proper divisors (72083119584).

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

28426384896 is a wasteful number, since it uses less digits than its factorization.

28426384896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774 (or 1751 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 60.

The spelling of 28426384896 in words is "twenty-eight billion, four hundred twenty-six million, three hundred eighty-four thousand, eight hundred ninety-six".