72278755248 has 80 divisors (see below), whose sum is σ = 222672462336. Its totient is φ = 19753198080.

The previous prime is 72278755231. The next prime is 72278755253. The reversal of 72278755248 is 84255787227.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4668693 + ... + 4684148.

Almost surely, 2^72278755248 is an apocalyptic number.

It is an amenable number.

72278755248 is an abundant number, since it is smaller than the sum of its proper divisors (150393707088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72278755248 is a wasteful number, since it uses less digits than its factorization.

72278755248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352882 (or 9352876 counting only the distinct ones).

The product of its digits is 17561600, while the sum is 57.

The spelling of 72278755248 in words is "seventy-two billion, two hundred seventy-eight million, seven hundred fifty-five thousand, two hundred forty-eight".