72545227121603 has 8 divisors (see below), whose sum is σ = 72641084300400. Its totient is φ = 72449373892608.

The previous prime is 72545227121527. The next prime is 72545227121611. The reversal of 72545227121603 is 30612172254527.

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 72545227121603 - 2¹⁰ = 72545227120579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72545227127603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36720743 + ... + 38645871.

It is an arithmetic number, because the mean of its divisors is an integer number (9080135537550).

Almost surely, 2^{72545227121603} is an apocalyptic number.

72545227121603 is a deficient number, since it is larger than the sum of its proper divisors (95857178797).

72545227121603 is a wasteful number, since it uses less digits than its factorization.

72545227121603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974901.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 72545227121603 in words is "seventy-two trillion, five hundred forty-five billion, two hundred twenty-seven million, one hundred twenty-one thousand, six hundred three".