28912330496 has 144 divisors (see below), whose sum is σ = 67653325824. Its totient is φ = 12074545152.

The previous prime is 28912330483. The next prime is 28912330547. The reversal of 28912330496 is 69403321982.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 28912330496.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23834786 + ... + 23835998.

Almost surely, 2^28912330496 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 28912330496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33826662912).

28912330496 is an abundant number, since it is smaller than the sum of its proper divisors (38740995328).

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

28912330496 is a wasteful number, since it uses less digits than its factorization.

28912330496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 28912330496 in words is "twenty-eight billion, nine hundred twelve million, three hundred thirty thousand, four hundred ninety-six".