28324699042816 has 88 divisors (see below), whose sum is σ = 61790031609120. Its totient is φ = 12870514483200.

The previous prime is 28324699042769. The next prime is 28324699042823. The reversal of 28324699042816 is 61824099642382.

It is a tau number, because it is divible by the number of its divisors (88).

It is a super-2 number, since 2×28324699042816² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33042150 + ... + 33888538.

Almost surely, 2^{28324699042816} 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 28324699042816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30895015804560).

28324699042816 is an abundant number, since it is smaller than the sum of its proper divisors (33465332566304).

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

28324699042816 is a wasteful number, since it uses less digits than its factorization.

28324699042816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849391 (or 849373 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 64.

The spelling of 28324699042816 in words is "twenty-eight trillion, three hundred twenty-four billion, six hundred ninety-nine million, forty-two thousand, eight hundred sixteen".