280350129361 has 9 divisors (see below), whose sum is σ = 281136488529. Its totient is φ = 279565968000.

The previous prime is 280350129337. The next prime is 280350129383. The reversal of 280350129361 is 163921053082.

The square root of 280350129361 is 529481.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 128119761 + 280222009600 = 11319^2 + 529360^2 .

It is not a de Polignac number, because 280350129361 - 2⁷ = 280350129233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280350120361) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 318217641 + ... + 318218521.

Almost surely, 2^280350129361 is an apocalyptic number.

280350129361 is the 529481-st square number.

280350129361 is the 264741-st centered octagonal number.

It is an amenable number.

280350129361 is a deficient number, since it is larger than the sum of its proper divisors (786359168).

280350129361 is an frugal number, since it uses more digits than its factorization.

280350129361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 280350129361 in words is "two hundred eighty billion, three hundred fifty million, one hundred twenty-nine thousand, three hundred sixty-one".