72788546628 has 36 divisors (see below), whose sum is σ = 210278024320. Its totient is φ = 20796727536.

The previous prime is 72788546581. The next prime is 72788546639. The reversal of 72788546628 is 82664588727.

72788546628 is a `hidden beast` number, since 7 + 2 + 7 + 88 + 546 + 6 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144421468 + ... + 144421971.

Almost surely, 2^72788546628 is an apocalyptic number.

It is an amenable number.

72788546628 is an abundant number, since it is smaller than the sum of its proper divisors (137489477692).

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

72788546628 is a wasteful number, since it uses less digits than its factorization.

72788546628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288843456 (or 288843451 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 63.

The spelling of 72788546628 in words is "seventy-two billion, seven hundred eighty-eight million, five hundred forty-six thousand, six hundred twenty-eight".