280122428251 has 4 divisors (see below), whose sum is σ = 280123806600. Its totient is φ = 280121049904.

The previous prime is 280122428239. The next prime is 280122428263. The reversal of 280122428251 is 152824221082.

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

It is an interprime number because it is at equal distance from previous prime (280122428239) and next prime (280122428263).

It is a cyclic number.

It is not a de Polignac number, because 280122428251 - 2³¹ = 277974944603 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 280122428251.

It is not an unprimeable number, because it can be changed into a prime (280122428221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317521 + ... + 813058.

It is an arithmetic number, because the mean of its divisors is an integer number (70030951650).

Almost surely, 2^280122428251 is an apocalyptic number.

280122428251 is a deficient number, since it is larger than the sum of its proper divisors (1378349).

280122428251 is a wasteful number, since it uses less digits than its factorization.

280122428251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378348.

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 280122428251 in words is "two hundred eighty billion, one hundred twenty-two million, four hundred twenty-eight thousand, two hundred fifty-one".