280348730300063 has 4 divisors (see below), whose sum is σ = 286313596902240. Its totient is φ = 274383863697888.

The previous prime is 280348730300029. The next prime is 280348730300087. The reversal of 280348730300063 is 360003037843082.

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

It is a cyclic number.

It is not a de Polignac number, because 280348730300063 - 2⁶ = 280348730299999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 5964866602129 = 280348730300063 / (2 + 8 + 0 + 3 + 4 + 8 + 7 + 3 + 0 + 3 + 0 + 0 + 0 + 6 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280348730299990 and 280348730300017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280348730300963) 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, 2982433301018 + ... + 2982433301111.

It is an arithmetic number, because the mean of its divisors is an integer number (71578399225560).

Almost surely, 2^{280348730300063} is an apocalyptic number.

280348730300063 is a deficient number, since it is larger than the sum of its proper divisors (5964866602177).

280348730300063 is an equidigital number, since it uses as much as digits as its factorization.

280348730300063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964866602176.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The spelling of 280348730300063 in words is "two hundred eighty trillion, three hundred forty-eight billion, seven hundred thirty million, three hundred thousand, sixty-three".