28906310902 has 32 divisors (see below), whose sum is σ = 52534702080. Its totient is φ = 11664764640.

The previous prime is 28906310887. The next prime is 28906310911. The reversal of 28906310902 is 20901360982.

It is a happy number.

It is a congruent number.

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, 884002 + ... + 916117.

It is an arithmetic number, because the mean of its divisors is an integer number (1641709440).

Almost surely, 2^28906310902 is an apocalyptic number.

28906310902 is a deficient number, since it is larger than the sum of its proper divisors (23628391178).

28906310902 is a wasteful number, since it uses less digits than its factorization.

28906310902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800196.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 28906310902 in words is "twenty-eight billion, nine hundred six million, three hundred ten thousand, nine hundred two".