278151612223 has 16 divisors (see below), whose sum is σ = 285322899456. Its totient is φ = 271034009280.

The previous prime is 278151612209. The next prime is 278151612239. The reversal of 278151612223 is 322216151872.

It is a cyclic number.

It is not a de Polignac number, because 278151612223 - 2³³ = 269561677631 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 (278151612283) 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 15 ways as a sum of consecutive naturals, for example, 19646115 + ... + 19660267.

It is an arithmetic number, because the mean of its divisors is an integer number (17832681216).

Almost surely, 2^278151612223 is an apocalyptic number.

278151612223 is a deficient number, since it is larger than the sum of its proper divisors (7171287233).

278151612223 is a wasteful number, since it uses less digits than its factorization.

278151612223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16014.

The product of its digits is 80640, while the sum is 40.

The spelling of 278151612223 in words is "two hundred seventy-eight billion, one hundred fifty-one million, six hundred twelve thousand, two hundred twenty-three".