28059551850 has 96 divisors (see below), whose sum is σ = 75955138560. Its totient is φ = 6798616000.

The previous prime is 28059551843. The next prime is 28059551851. The reversal of 28059551850 is 5815595082.

It is a self number, because there is not a number n which added to its sum of digits gives 28059551850.

It is not an unprimeable number, because it can be changed into a prime (28059551851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4172791 + ... + 4179509.

It is an arithmetic number, because the mean of its divisors is an integer number (791199360).

Almost surely, 2^28059551850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28059551850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37977569280).

28059551850 is an abundant number, since it is smaller than the sum of its proper divisors (47895586710).

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

28059551850 is a wasteful number, since it uses less digits than its factorization.

28059551850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276 (or 9271 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 48.

The spelling of 28059551850 in words is "twenty-eight billion, fifty-nine million, five hundred fifty-one thousand, eight hundred fifty".