28231974593496 has 160 divisors (see below), whose sum is σ = 79348347318240. Its totient is φ = 9378256868352.

The previous prime is 28231974593477. The next prime is 28231974593519. The reversal of 28231974593496 is 69439547913282.

28231974593496 is a `hidden beast` number, since 2 + 8 + 2 + 3 + 1 + 9 + 7 + 45 + 93 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 248821290 + ... + 248934726.

It is an arithmetic number, because the mean of its divisors is an integer number (495927170739).

Almost surely, 2^{28231974593496} 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 28231974593496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39674173659120).

28231974593496 is an abundant number, since it is smaller than the sum of its proper divisors (51116372724744).

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

28231974593496 is a wasteful number, since it uses less digits than its factorization.

28231974593496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114775 (or 114762 counting only the distinct ones).

The product of its digits is 705438720, while the sum is 72.

The spelling of 28231974593496 in words is "twenty-eight trillion, two hundred thirty-one billion, nine hundred seventy-four million, five hundred ninety-three thousand, four hundred ninety-six".