28099205016 has 32 divisors (see below), whose sum is σ = 72670359600. Its totient is φ = 9043422080.

The previous prime is 28099205011. The next prime is 28099205033. The reversal of 28099205016 is 61050299082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28099205011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20185515 + ... + 20186906.

Almost surely, 2^28099205016 is an apocalyptic number.

It is an amenable number.

28099205016 is an abundant number, since it is smaller than the sum of its proper divisors (44571154584).

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

28099205016 is a wasteful number, since it uses less digits than its factorization.

28099205016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40372459 (or 40372455 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 28099205016 in words is "twenty-eight billion, ninety-nine million, two hundred five thousand, sixteen".