28330826081490 has 512 divisors, whose sum is σ = 79150224384000. Its totient is φ = 7206299882496.

The previous prime is 28330826081477. The next prime is 28330826081527. The reversal of 28330826081490 is 9418062803382.

28330826081490 is a `hidden beast` number, since 2 + 8 + 330 + 8 + 260 + 8 + 1 + 49 + 0 = 666.

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

It is a Curzon number.

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 255 ways as a sum of consecutive naturals, for example, 43787984347 + ... + 43787984993.

It is an arithmetic number, because the mean of its divisors is an integer number (154590282000).

Almost surely, 2^{28330826081490} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28330826081490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39575112192000).

28330826081490 is an abundant number, since it is smaller than the sum of its proper divisors (50819398302510).

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

28330826081490 is a wasteful number, since it uses less digits than its factorization.

28330826081490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 28330826081490 in words is "twenty-eight trillion, three hundred thirty billion, eight hundred twenty-six million, eighty-one thousand, four hundred ninety".