28699627632 has 160 divisors (see below), whose sum is σ = 81473410368. Its totient is φ = 8652054528.

The previous prime is 28699627601. The next prime is 28699627709. The reversal of 28699627632 is 23672699682.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7149658 + ... + 7153670.

Almost surely, 2^28699627632 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 28699627632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40736705184).

28699627632 is an abundant number, since it is smaller than the sum of its proper divisors (52773782736).

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

28699627632 is a wasteful number, since it uses less digits than its factorization.

28699627632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267 (or 4261 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 60.

The spelling of 28699627632 in words is "twenty-eight billion, six hundred ninety-nine million, six hundred twenty-seven thousand, six hundred thirty-two".