28825660480 has 28 divisors (see below), whose sum is σ = 68641104780. Its totient is φ = 11530264064.

The previous prime is 28825660477. The next prime is 28825660529. The reversal of 28825660480 is 8406652882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4867573824 + 23958086656 = 69768^2 + 154784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45039775 + ... + 45040414.

Almost surely, 2^28825660480 is an apocalyptic number.

28825660480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28825660480 is an abundant number, since it is smaller than the sum of its proper divisors (39815444300).

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

28825660480 is an equidigital number, since it uses as much as digits as its factorization.

28825660480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90080206 (or 90080196 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 28825660480 in words is "twenty-eight billion, eight hundred twenty-five million, six hundred sixty thousand, four hundred eighty".