28627843968 has 96 divisors (see below), whose sum is σ = 82972726200. Its totient is φ = 9473909760.

The previous prime is 28627843967. The next prime is 28627844023. The reversal of 28627843968 is 86934872682.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28627843963) 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, 70738 + ... + 249518.

Almost surely, 2^28627843968 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 28627843968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41486363100).

28627843968 is an abundant number, since it is smaller than the sum of its proper divisors (54344882232).

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

28627843968 is a wasteful number, since it uses less digits than its factorization.

28627843968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178940 (or 178925 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 28627843968 in words is "twenty-eight billion, six hundred twenty-seven million, eight hundred forty-three thousand, nine hundred sixty-eight".