72788546605 has 32 divisors (see below), whose sum is σ = 90311332608. Its totient is φ = 56282688000.

The previous prime is 72788546581. The next prime is 72788546639. The reversal of 72788546605 is 50664588727.

It is a happy number.

It is not a de Polignac number, because 72788546605 - 2¹³ = 72788538413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72788546605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12286174 + ... + 12292096.

It is an arithmetic number, because the mean of its divisors is an integer number (2822229144).

Almost surely, 2^72788546605 is an apocalyptic number.

It is an amenable number.

72788546605 is a deficient number, since it is larger than the sum of its proper divisors (17522786003).

72788546605 is a wasteful number, since it uses less digits than its factorization.

72788546605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6517.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 72788546605 in words is "seventy-two billion, seven hundred eighty-eight million, five hundred forty-six thousand, six hundred five".