28494498816 has 924 divisors, whose sum is σ = 107125323480. Its totient is φ = 7524679680.

The previous prime is 28494498763. The next prime is 28494498829. The reversal of 28494498816 is 61889449482.

28494498816 is a `hidden beast` number, since 28 + 49 + 4 + 498 + 81 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (31850496) is a multiple of the sum of its prime divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 694987756 + ... + 694987796.

Almost surely, 2^28494498816 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 28494498816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53562661740).

28494498816 is an abundant number, since it is smaller than the sum of its proper divisors (78630824664).

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

28494498816 is an equidigital number, since it uses as much as digits as its factorization.

28494498816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 72 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 63.

The spelling of 28494498816 in words is "twenty-eight billion, four hundred ninety-four million, four hundred ninety-eight thousand, eight hundred sixteen".