72529078589 has 32 divisors (see below), whose sum is σ = 81265766400. Its totient is φ = 64181376000.

The previous prime is 72529078553. The next prime is 72529078591. The reversal of 72529078589 is 98587092527.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 72529078589 - 2²⁰ = 72528030013 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72529078519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15941687 + ... + 15946235.

It is an arithmetic number, because the mean of its divisors is an integer number (2539555200).

Almost surely, 2^72529078589 is an apocalyptic number.

It is an amenable number.

72529078589 is a deficient number, since it is larger than the sum of its proper divisors (8736687811).

72529078589 is a wasteful number, since it uses less digits than its factorization.

72529078589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901.

The product of its (nonzero) digits is 25401600, while the sum is 62.

The spelling of 72529078589 in words is "seventy-two billion, five hundred twenty-nine million, seventy-eight thousand, five hundred eighty-nine".