28031080896 has 504 divisors, whose sum is σ = 102715551744. Its totient is φ = 7148943360.

The previous prime is 28031080877. The next prime is 28031080939. The reversal of 28031080896 is 69808013082.

It is a tau number, because it is divible by the number of its divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21122985 + ... + 21124311.

Almost surely, 2^28031080896 is an apocalyptic number.

28031080896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28031080896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51357775872).

28031080896 is an abundant number, since it is smaller than the sum of its proper divisors (74684470848).

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

28031080896 is a wasteful number, since it uses less digits than its factorization.

28031080896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 28031080896 in words is "twenty-eight billion, thirty-one million, eighty thousand, eight hundred ninety-six".