28992374488 has 72 divisors (see below), whose sum is σ = 69011253180. Its totient is φ = 11291374080.

The previous prime is 28992374473. The next prime is 28992374519. The reversal of 28992374488 is 88447329982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11179720 + ... + 11182312.

Almost surely, 2^28992374488 is an apocalyptic number.

28992374488 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 28992374488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34505626590).

28992374488 is an abundant number, since it is smaller than the sum of its proper divisors (40018878692).

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

28992374488 is an equidigital number, since it uses as much as digits as its factorization.

28992374488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217 (or 2613 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 64.

The spelling of 28992374488 in words is "twenty-eight billion, nine hundred ninety-two million, three hundred seventy-four thousand, four hundred eighty-eight".