280315248247 has 8 divisors (see below), whose sum is σ = 302589174240. Its totient is φ = 258881847840.

The previous prime is 280315248217. The next prime is 280315248271. The reversal of 280315248247 is 742842513082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 280315248247 - 2³¹ = 278167764599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280315248197 and 280315248206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280315248217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210130704 + ... + 210132037.

It is an arithmetic number, because the mean of its divisors is an integer number (37823646780).

Almost surely, 2^280315248247 is an apocalyptic number.

280315248247 is a deficient number, since it is larger than the sum of its proper divisors (22273925993).

280315248247 is a wasteful number, since it uses less digits than its factorization.

280315248247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420262793.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 280315248247 in words is "two hundred eighty billion, three hundred fifteen million, two hundred forty-eight thousand, two hundred forty-seven".