28922117616 has 360 divisors, whose sum is σ = 97131446880. Its totient is φ = 7868067840.

The previous prime is 28922117591. The next prime is 28922117633. The reversal of 28922117616 is 61671122982.

28922117616 is a `hidden beast` number, since 2 + 8 + 9 + 2 + 21 + 1 + 7 + 616 = 666.

It is a nude number because it is divisible by every one of its digits.

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, 70714020 + ... + 70714428.

Almost surely, 2^28922117616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28922117616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48565723440).

28922117616 is an abundant number, since it is smaller than the sum of its proper divisors (68209329264).

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

28922117616 is a wasteful number, since it uses less digits than its factorization.

28922117616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 525 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The spelling of 28922117616 in words is "twenty-eight billion, nine hundred twenty-two million, one hundred seventeen thousand, six hundred sixteen".