28140871098 has 16 divisors (see below), whose sum is σ = 56320655040. Its totient is φ = 9373804896.

The previous prime is 28140871093. The next prime is 28140871153. The reversal of 28140871098 is 89017804182.

It is not an unprimeable number, because it can be changed into a prime (28140871091) 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, 1611963 + ... + 1629326.

It is an arithmetic number, because the mean of its divisors is an integer number (3520040940).

Almost surely, 2^28140871098 is an apocalyptic number.

28140871098 is an abundant number, since it is smaller than the sum of its proper divisors (28179783942).

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

28140871098 is a wasteful number, since it uses less digits than its factorization.

28140871098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242741.

The product of its (nonzero) digits is 258048, while the sum is 48.

The spelling of 28140871098 in words is "twenty-eight billion, one hundred forty million, eight hundred seventy-one thousand, ninety-eight".