28696022208 has 336 divisors, whose sum is σ = 96695239680. Its totient is φ = 7966605312.

The previous prime is 28696022207. The next prime is 28696022209. The reversal of 28696022208 is 80222069682.

It is an interprime number because it is at equal distance from previous prime (28696022207) and next prime (28696022209).

It is a tau number, because it is divible by the number of its divisors (336).

It is not an unprimeable number, because it can be changed into a prime (28696022207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30888688 + ... + 30889616.

Almost surely, 2^28696022208 is an apocalyptic number.

28696022208 is a gapful number since it is divisible by the number (28) 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 28696022208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48347619840).

28696022208 is an abundant number, since it is smaller than the sum of its proper divisors (67999217472).

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

28696022208 is a wasteful number, since it uses less digits than its factorization.

28696022208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 28696022208 in words is "twenty-eight billion, six hundred ninety-six million, twenty-two thousand, two hundred eight".