28409914822 has 4 divisors (see below), whose sum is σ = 42614872236. Its totient is φ = 14204957410.

The previous prime is 28409914811. The next prime is 28409914829. The reversal of 28409914822 is 22841990482.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28409914829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7102478704 + ... + 7102478707.

It is an arithmetic number, because the mean of its divisors is an integer number (10653718059).

Almost surely, 2^28409914822 is an apocalyptic number.

28409914822 is a deficient number, since it is larger than the sum of its proper divisors (14204957414).

28409914822 is a wasteful number, since it uses less digits than its factorization.

28409914822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14204957413.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 28409914822 in words is "twenty-eight billion, four hundred nine million, nine hundred fourteen thousand, eight hundred twenty-two".