72005030547 has 8 divisors (see below), whose sum is σ = 96081078720. Its totient is φ = 47966168040.

The previous prime is 72005030501. The next prime is 72005030563. The reversal of 72005030547 is 74503050027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72005030547 - 2²⁰ = 72003981971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72005030567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9291897 + ... + 9299642.

It is an arithmetic number, because the mean of its divisors is an integer number (12010134840).

Almost surely, 2^72005030547 is an apocalyptic number.

72005030547 is a deficient number, since it is larger than the sum of its proper divisors (24076048173).

72005030547 is a wasteful number, since it uses less digits than its factorization.

72005030547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18592833.

The product of its (nonzero) digits is 29400, while the sum is 33.

The spelling of 72005030547 in words is "seventy-two billion, five million, thirty thousand, five hundred forty-seven".