28290193590 has 64 divisors (see below), whose sum is σ = 70239117312. Its totient is φ = 7284816000.

The previous prime is 28290193573. The next prime is 28290193609. The reversal of 28290193590 is 9539109282.

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 31 ways as a sum of consecutive naturals, for example, 397740 + ... + 463440.

It is an arithmetic number, because the mean of its divisors is an integer number (1097486208).

Almost surely, 2^28290193590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28290193590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35119558656).

28290193590 is an abundant number, since it is smaller than the sum of its proper divisors (41948923722).

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

28290193590 is a wasteful number, since it uses less digits than its factorization.

28290193590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66205.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 28290193590 in words is "twenty-eight billion, two hundred ninety million, one hundred ninety-three thousand, five hundred ninety".