280870213564013 has 4 divisors (see below), whose sum is σ = 280877465796540. Its totient is φ = 280862961331488.

The previous prime is 280870213563937. The next prime is 280870213564027. The reversal of 280870213564013 is 310465312078082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139200873948964 + 141669339615049 = 11798342^2 + 11902493^2 .

It is a cyclic number.

It is not a de Polignac number, because 280870213564013 - 2¹⁰ = 280870213562989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280870213564033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3626058170 + ... + 3626135627.

It is an arithmetic number, because the mean of its divisors is an integer number (70219366449135).

Almost surely, 2^{280870213564013} is an apocalyptic number.

It is an amenable number.

280870213564013 is a deficient number, since it is larger than the sum of its proper divisors (7252232527).

280870213564013 is an equidigital number, since it uses as much as digits as its factorization.

280870213564013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252232526.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 280870213564013 in words is "two hundred eighty trillion, eight hundred seventy billion, two hundred thirteen million, five hundred sixty-four thousand, thirteen".