72255819784 has 16 divisors (see below), whose sum is σ = 135785491920. Its totient is φ = 36046355280.

The previous prime is 72255819773. The next prime is 72255819793. The reversal of 72255819784 is 48791855227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10190562 + ... + 10197649.

It is an arithmetic number, because the mean of its divisors is an integer number (8486593245).

Almost surely, 2^72255819784 is an apocalyptic number.

It is an amenable number.

72255819784 is a deficient number, since it is larger than the sum of its proper divisors (63529672136).

72255819784 is a wasteful number, since it uses less digits than its factorization.

72255819784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20388660 (or 20388656 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 58.

The spelling of 72255819784 in words is "seventy-two billion, two hundred fifty-five million, eight hundred nineteen thousand, seven hundred eighty-four".