28694379424 has 96 divisors (see below), whose sum is σ = 63576938880. Its totient is φ = 12667871232.

The previous prime is 28694379421. The next prime is 28694379437. The reversal of 28694379424 is 42497349682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28694379421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1051132 + ... + 1078084.

It is an arithmetic number, because the mean of its divisors is an integer number (662259780).

Almost surely, 2^28694379424 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 28694379424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31788469440).

28694379424 is an abundant number, since it is smaller than the sum of its proper divisors (34882559456).

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

28694379424 is a wasteful number, since it uses less digits than its factorization.

28694379424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27102 (or 27094 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 58.

The spelling of 28694379424 in words is "twenty-eight billion, six hundred ninety-four million, three hundred seventy-nine thousand, four hundred twenty-four".