72534345601 has 8 divisors (see below), whose sum is σ = 72936072000. Its totient is φ = 72132991920.

The previous prime is 72534345551. The next prime is 72534345607. The reversal of 72534345601 is 10654343527.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72534345601 - 2⁹ = 72534345089 is a prime.

It is a super-2 number, since 2×72534345601² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72534345607) 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, 301731 + ... + 485911.

It is an arithmetic number, because the mean of its divisors is an integer number (9117009000).

Almost surely, 2^72534345601 is an apocalyptic number.

It is an amenable number.

72534345601 is a deficient number, since it is larger than the sum of its proper divisors (401726399).

72534345601 is a wasteful number, since it uses less digits than its factorization.

72534345601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186359.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 72534345601 in words is "seventy-two billion, five hundred thirty-four million, three hundred forty-five thousand, six hundred one".