280028327761 has 16 divisors (see below), whose sum is σ = 344998140928. Its totient is φ = 221337230400.

The previous prime is 280028327731. The next prime is 280028327767. The reversal of 280028327761 is 167723820082.

It is not a de Polignac number, because 280028327761 - 2²⁵ = 279994773329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280028327767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1462410 + ... + 1642771.

It is an arithmetic number, because the mean of its divisors is an integer number (21562383808).

Almost surely, 2^280028327761 is an apocalyptic number.

280028327761 is the 305521-st hex number.

It is an amenable number.

280028327761 is a deficient number, since it is larger than the sum of its proper divisors (64969813167).

280028327761 is a wasteful number, since it uses less digits than its factorization.

280028327761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106192.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 280028327761 in words is "two hundred eighty billion, twenty-eight million, three hundred twenty-seven thousand, seven hundred sixty-one".