280728468202 has 64 divisors (see below), whose sum is σ = 572613318144. Its totient is φ = 99980052480.

The previous prime is 280728468131. The next prime is 280728468217. The reversal of 280728468202 is 202864827082.

It is a super-2 number, since 2×280728468202² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1901299 + ... + 2043622.

It is an arithmetic number, because the mean of its divisors is an integer number (8947083096).

Almost surely, 2^280728468202 is an apocalyptic number.

280728468202 is an abundant number, since it is smaller than the sum of its proper divisors (291884849942).

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

280728468202 is a wasteful number, since it uses less digits than its factorization.

280728468202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944983.

The product of its (nonzero) digits is 1376256, while the sum is 49.

The spelling of 280728468202 in words is "two hundred eighty billion, seven hundred twenty-eight million, four hundred sixty-eight thousand, two hundred two".