28292103821128 has 16 divisors (see below), whose sum is σ = 60625936759680. Its totient is φ = 12125187351888.

The previous prime is 28292103821041. The next prime is 28292103821153. The reversal of 28292103821128 is 82112830129282.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252608069776 + ... + 252608069887.

It is an arithmetic number, because the mean of its divisors is an integer number (3789121047480).

Almost surely, 2^{28292103821128} is an apocalyptic number.

28292103821128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28292103821128 is an abundant number, since it is smaller than the sum of its proper divisors (32333832938552).

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

28292103821128 is a wasteful number, since it uses less digits than its factorization.

28292103821128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505216139676 (or 505216139672 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 28292103821128 in words is "twenty-eight trillion, two hundred ninety-two billion, one hundred three million, eight hundred twenty-one thousand, one hundred twenty-eight".