280755149013 has 6 divisors (see below), whose sum is σ = 405535215254. Its totient is φ = 187170099336.

The previous prime is 280755148943. The next prime is 280755149021. The reversal of 280755149013 is 310941557082.

280755149013 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 551 + 4 + 90 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 153533099889 + 127222049124 = 391833^2 + 356682^2 .

It is not a de Polignac number, because 280755149013 - 2⁸ = 280755148757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280755149013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280755149813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15597508270 + ... + 15597508287.

Almost surely, 2^280755149013 is an apocalyptic number.

It is an amenable number.

280755149013 is a deficient number, since it is larger than the sum of its proper divisors (124780066241).

280755149013 is a wasteful number, since it uses less digits than its factorization.

280755149013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31195016563 (or 31195016560 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 280755149013 in words is "two hundred eighty billion, seven hundred fifty-five million, one hundred forty-nine thousand, thirteen".