28932237488 has 80 divisors (see below), whose sum is σ = 69931357440. Its totient is φ = 11265350400.

The previous prime is 28932237463. The next prime is 28932237511. The reversal of 28932237488 is 88473223982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2286443 + ... + 2299061.

It is an arithmetic number, because the mean of its divisors is an integer number (874141968).

Almost surely, 2^28932237488 is an apocalyptic number.

28932237488 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 28932237488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34965678720).

28932237488 is an abundant number, since it is smaller than the sum of its proper divisors (40999119952).

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

28932237488 is a wasteful number, since it uses less digits than its factorization.

28932237488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14506 (or 14500 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 56.

The spelling of 28932237488 in words is "twenty-eight billion, nine hundred thirty-two million, two hundred thirty-seven thousand, four hundred eighty-eight".