72758172288 has 64 divisors (see below), whose sum is σ = 197977691520. Its totient is φ = 23661189120.

The previous prime is 72758172287. The next prime is 72758172323. The reversal of 72758172288 is 88227185727.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (72758172281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294920 + ... + 2326407.

It is an arithmetic number, because the mean of its divisors is an integer number (3093401430).

Almost surely, 2^72758172288 is an apocalyptic number.

It is an amenable number.

72758172288 is an abundant number, since it is smaller than the sum of its proper divisors (125219519232).

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

72758172288 is a wasteful number, since it uses less digits than its factorization.

72758172288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621385 (or 4621373 counting only the distinct ones).

The product of its digits is 7024640, while the sum is 57.

The spelling of 72758172288 in words is "seventy-two billion, seven hundred fifty-eight million, one hundred seventy-two thousand, two hundred eighty-eight".