280148221079 has 4 divisors (see below), whose sum is σ = 280235307984. Its totient is φ = 280061134176.

The previous prime is 280148221019. The next prime is 280148221117. The reversal of 280148221079 is 970122841082.

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 280148221079 - 2²⁸ = 279879785623 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 (280148221019) 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, 43538627 + ... + 43545060.

It is an arithmetic number, because the mean of its divisors is an integer number (70058826996).

Almost surely, 2^280148221079 is an apocalyptic number.

280148221079 is a deficient number, since it is larger than the sum of its proper divisors (87086905).

280148221079 is an equidigital number, since it uses as much as digits as its factorization.

280148221079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87086904.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 280148221079 in words is "two hundred eighty billion, one hundred forty-eight million, two hundred twenty-one thousand, seventy-nine".