28831450450 has 36 divisors (see below), whose sum is σ = 58944840570.
Its totient is φ = 10484161600.
The previous prime is 28831450433. The next prime is 28831450471. The reversal of 28831450450 is 5405413882.
It can be written as a sum of positive squares in 3 ways, for example, as 18476149329 + 10355301121 = 135927^2 + 101761^2
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2376715 + ... + 2388814.
Almost surely, 228831450450 is an apocalyptic number.
28831450450 is an abundant number, since it is smaller than the sum of its proper divisors (30113390120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28831450450 is a wasteful number, since it uses less digits than its factorization.
28831450450 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4765563 (or 4765547 counting only the distinct ones).
The product of its (nonzero) digits is 153600, while the sum is 40.
The spelling of 28831450450 in words is "twenty-eight billion, eight hundred thirty-one million, four hundred fifty thousand, four hundred fifty".