72041578572 has 48 divisors (see below), whose sum is σ = 178175501280. Its totient is φ = 22577098752.

The previous prime is 72041578541. The next prime is 72041578573. The reversal of 72041578572 is 27587514027.

It is not an unprimeable number, because it can be changed into a prime (72041578573) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2704 + ... + 379592.

It is an arithmetic number, because the mean of its divisors is an integer number (3711989610).

Almost surely, 2^72041578572 is an apocalyptic number.

It is an amenable number.

72041578572 is an abundant number, since it is smaller than the sum of its proper divisors (106133922708).

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

72041578572 is a wasteful number, since it uses less digits than its factorization.

72041578572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377850 (or 377848 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 48.

The spelling of 72041578572 in words is "seventy-two billion, forty-one million, five hundred seventy-eight thousand, five hundred seventy-two".