28001313036 has 48 divisors (see below), whose sum is σ = 72605769600. Its totient is φ = 9332514576.

The previous prime is 28001313019. The next prime is 28001313083. The reversal of 28001313036 is 63031310082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145995 + ... + 1170173.

It is an arithmetic number, because the mean of its divisors is an integer number (1512620200).

Almost surely, 2^28001313036 is an apocalyptic number.

It is an amenable number.

28001313036 is an abundant number, since it is smaller than the sum of its proper divisors (44604456564).

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

28001313036 is a wasteful number, since it uses less digits than its factorization.

28001313036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34915 (or 34907 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 28001313036 in words is "twenty-eight billion, one million, three hundred thirteen thousand, thirty-six".