28433164368 has 160 divisors (see below), whose sum is σ = 86412754944. Its totient is φ = 7887753216.

The previous prime is 28433164363. The next prime is 28433164387. The reversal of 28433164368 is 86346133482.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28433164363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1998496 + ... + 2012672.

Almost surely, 2^28433164368 is an apocalyptic number.

28433164368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28433164368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43206377472).

28433164368 is an abundant number, since it is smaller than the sum of its proper divisors (57979590576).

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

28433164368 is a wasteful number, since it uses less digits than its factorization.

28433164368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14369 (or 14363 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 48.

The spelling of 28433164368 in words is "twenty-eight billion, four hundred thirty-three million, one hundred sixty-four thousand, three hundred sixty-eight".