28080601280 has 56 divisors (see below), whose sum is σ = 67127311008. Its totient is φ = 11188502528.

The previous prime is 28080601259. The next prime is 28080601301. The reversal of 28080601280 is 8210608082.

It is an interprime number because it is at equal distance from previous prime (28080601259) and next prime (28080601301).

It is a self number, because there is not a number n which added to its sum of digits gives 28080601280.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88484 + ... + 252963.

Almost surely, 2^28080601280 is an apocalyptic number.

28080601280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28080601280 is an abundant number, since it is smaller than the sum of its proper divisors (39046709728).

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

28080601280 is a wasteful number, since it uses less digits than its factorization.

28080601280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341721 (or 341711 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 28080601280 in words is "twenty-eight billion, eighty million, six hundred one thousand, two hundred eighty".