28751098464 has 216 divisors, whose sum is σ = 92065971816. Its totient is φ = 8499532800.

The previous prime is 28751098451. The next prime is 28751098477. The reversal of 28751098464 is 46489015782.

It is a happy number.

28751098464 is a `hidden beast` number, since 2 + 8 + 75 + 109 + 8 + 464 = 666.

It is an interprime number because it is at equal distance from previous prime (28751098451) and next prime (28751098477).

It is a self number, because there is not a number n which added to its sum of digits gives 28751098464.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 1418707 + ... + 1438829.

It is an arithmetic number, because the mean of its divisors is an integer number (426231351).

Almost surely, 2^28751098464 is an apocalyptic number.

28751098464 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 28751098464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46032985908).

28751098464 is an abundant number, since it is smaller than the sum of its proper divisors (63314873352).

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

28751098464 is a wasteful number, since it uses less digits than its factorization.

28751098464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20202 (or 20180 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 28751098464 in words is "twenty-eight billion, seven hundred fifty-one million, ninety-eight thousand, four hundred sixty-four".