28622465532 has 36 divisors (see below), whose sum is σ = 75030910136. Its totient is φ = 9540821520.

The previous prime is 28622465489. The next prime is 28622465533. The reversal of 28622465532 is 23556422682.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28622465533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14722519 + ... + 14724462.

Almost surely, 2^28622465532 is an apocalyptic number.

It is an amenable number.

28622465532 is an abundant number, since it is smaller than the sum of its proper divisors (46408444604).

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

28622465532 is a wasteful number, since it uses less digits than its factorization.

28622465532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29447000 (or 29446986 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 28622465532 in words is "twenty-eight billion, six hundred twenty-two million, four hundred sixty-five thousand, five hundred thirty-two".