28070498280 has 64 divisors (see below), whose sum is σ = 91867089600. Its totient is φ = 6804968960.

The previous prime is 28070498237. The next prime is 28070498297. The reversal of 28070498280 is 8289407082.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10631445 + ... + 10634084.

It is an arithmetic number, because the mean of its divisors is an integer number (1435423275).

Almost surely, 2^28070498280 is an apocalyptic number.

28070498280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28070498280 is an abundant number, since it is smaller than the sum of its proper divisors (63796591320).

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

28070498280 is a wasteful number, since it uses less digits than its factorization.

28070498280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21265554 (or 21265550 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 28070498280 in words is "twenty-eight billion, seventy million, four hundred ninety-eight thousand, two hundred eighty".