28243473496 has 64 divisors (see below), whose sum is σ = 61920967680. Its totient is φ = 11825429760.

The previous prime is 28243473493. The next prime is 28243473497. The reversal of 28243473496 is 69437434282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28243473493) 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, 1493476 + ... + 1512268.

It is an arithmetic number, because the mean of its divisors is an integer number (967515120).

Almost surely, 2^28243473496 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 28243473496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30960483840).

28243473496 is an abundant number, since it is smaller than the sum of its proper divisors (33677494184).

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

28243473496 is a wasteful number, since it uses less digits than its factorization.

28243473496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19424 (or 19420 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 52.

The spelling of 28243473496 in words is "twenty-eight billion, two hundred forty-three million, four hundred seventy-three thousand, four hundred ninety-six".