28343383530 has 64 divisors (see below), whose sum is σ = 84809299968. Its totient is φ = 5889533760.

The previous prime is 28343383477. The next prime is 28343383573. The reversal of 28343383530 is 3538334382.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6132622 + ... + 6137241.

It is an arithmetic number, because the mean of its divisors is an integer number (1325145312).

Almost surely, 2^28343383530 is an apocalyptic number.

28343383530 is an abundant number, since it is smaller than the sum of its proper divisors (56465916438).

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

28343383530 is a wasteful number, since it uses less digits than its factorization.

28343383530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12269891.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 28343383530 in words is "twenty-eight billion, three hundred forty-three million, three hundred eighty-three thousand, five hundred thirty".