28894836264 has 192 divisors, whose sum is σ = 90613857600. Its totient is φ = 7630156800.

The previous prime is 28894836263. The next prime is 28894836307. The reversal of 28894836264 is 46263849882.

It is a junction number, because it is equal to n+sod(n) for n = 28894836198 and 28894836207.

It is not an unprimeable number, because it can be changed into a prime (28894836263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 900334 + ... + 931874.

It is an arithmetic number, because the mean of its divisors is an integer number (471947175).

Almost surely, 2^28894836264 is an apocalyptic number.

28894836264 is a gapful number since it is divisible by the number (24) 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 28894836264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45306928800).

28894836264 is an abundant number, since it is smaller than the sum of its proper divisors (61719021336).

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

28894836264 is a wasteful number, since it uses less digits than its factorization.

28894836264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31624 (or 31613 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 60.

The spelling of 28894836264 in words is "twenty-eight billion, eight hundred ninety-four million, eight hundred thirty-six thousand, two hundred sixty-four".