28098086400 has 360 divisors, whose sum is σ = 101160918144. Its totient is φ = 7447756800.

The previous prime is 28098086383. The next prime is 28098086447. The reversal of 28098086400 is 468089082.

It is a happy number.

28098086400 is a `hidden beast` number, since 2 + 80 + 98 + 0 + 86 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 35 ways as a sum of consecutive naturals, for example, 22002562 + ... + 22003838.

Almost surely, 2^28098086400 is an apocalyptic number.

28098086400 is a gapful number since it is divisible by the number (20) 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 28098086400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50580459072).

28098086400 is an abundant number, since it is smaller than the sum of its proper divisors (73062831744).

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

28098086400 is a wasteful number, since it uses less digits than its factorization.

28098086400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 28098086400 in words is "twenty-eight billion, ninety-eight million, eighty-six thousand, four hundred".