28243296372 has 12 divisors (see below), whose sum is σ = 65901024896. Its totient is φ = 9414432120.

The previous prime is 28243296371. The next prime is 28243296451. The reversal of 28243296372 is 27369234282.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28243296371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176804004 + ... + 1176804027.

Almost surely, 2^28243296372 is an apocalyptic number.

It is an amenable number.

28243296372 is an abundant number, since it is smaller than the sum of its proper divisors (37657728524).

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

28243296372 is a wasteful number, since it uses less digits than its factorization.

28243296372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353608038 (or 2353608036 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The spelling of 28243296372 in words is "twenty-eight billion, two hundred forty-three million, two hundred ninety-six thousand, three hundred seventy-two".