28903360032 has 96 divisors (see below), whose sum is σ = 84767679360. Its totient is φ = 9581172480.

The previous prime is 28903360019. The next prime is 28903360093. The reversal of 28903360032 is 23006330982.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×28903360032² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 63973 + ... + 248795.

It is an arithmetic number, because the mean of its divisors is an integer number (882996660).

Almost surely, 2^28903360032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28903360032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42383839680).

28903360032 is an abundant number, since it is smaller than the sum of its proper divisors (55864319328).

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

28903360032 is a wasteful number, since it uses less digits than its factorization.

28903360032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185023 (or 185009 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 28903360032 in words is "twenty-eight billion, nine hundred three million, three hundred sixty thousand, thirty-two".