28467994275 has 216 divisors, whose sum is σ = 61773613200. Its totient is φ = 12480652800.

The previous prime is 28467994267. The next prime is 28467994277. The reversal of 28467994275 is 57249976482.

It is not a de Polignac number, because 28467994275 - 2³ = 28467994267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (28467994277) by changing a digit.

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 215 ways as a sum of consecutive naturals, for example, 86005860 + ... + 86006190.

It is an arithmetic number, because the mean of its divisors is an integer number (285988950).

Almost surely, 2^28467994275 is an apocalyptic number.

28467994275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28467994275 is an abundant number, since it is smaller than the sum of its proper divisors (33305618925).

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

28467994275 is a wasteful number, since it uses less digits than its factorization.

28467994275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 644 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 28467994275 in words is "twenty-eight billion, four hundred sixty-seven million, nine hundred ninety-four thousand, two hundred seventy-five".