28098588690 has 64 divisors (see below), whose sum is σ = 74974896000. Its totient is φ = 7488424512.

The previous prime is 28098588689. The next prime is 28098588743. The reversal of 28098588690 is 9688589082.

28098588690 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×28098588690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428104 + ... + 489356.

It is an arithmetic number, because the mean of its divisors is an integer number (1171482750).

Almost surely, 2^28098588690 is an apocalyptic number.

28098588690 is an abundant number, since it is smaller than the sum of its proper divisors (46876307310).

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

28098588690 is a wasteful number, since it uses less digits than its factorization.

28098588690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62968 (or 62962 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 63.

The spelling of 28098588690 in words is "twenty-eight billion, ninety-eight million, five hundred eighty-eight thousand, six hundred ninety".