28984713408 has 560 divisors, whose sum is σ = 104387416320. Its totient is φ = 7800136704.

The previous prime is 28984713383. The next prime is 28984713419. The reversal of 28984713408 is 80431748982.

It is a happy number.

It is a super-2 number, since 2×28984713408² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 167541610 + ... + 167541782.

Almost surely, 2^28984713408 is an apocalyptic number.

28984713408 is a gapful number since it is divisible by the number (28) 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 28984713408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52193708160).

28984713408 is an abundant number, since it is smaller than the sum of its proper divisors (75402702912).

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

28984713408 is an frugal number, since it uses more digits than its factorization.

28984713408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 28984713408 in words is "twenty-eight billion, nine hundred eighty-four million, seven hundred thirteen thousand, four hundred eight".