72730534447603 has 8 divisors (see below), whose sum is σ = 72805978976256. Its totient is φ = 72655094061000.

The previous prime is 72730534447601. The next prime is 72730534447609. The reversal of 72730534447603 is 30674443503727.

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 72730534447603 - 2¹ = 72730534447601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72730534447601) 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, 34741278 + ... + 36775228.

It is an arithmetic number, because the mean of its divisors is an integer number (9100747372032).

Almost surely, 2^{72730534447603} is an apocalyptic number.

72730534447603 is a deficient number, since it is larger than the sum of its proper divisors (75444528653).

72730534447603 is a wasteful number, since it uses less digits than its factorization.

72730534447603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071025.

The product of its (nonzero) digits is 35562240, while the sum is 55.

The spelling of 72730534447603 in words is "seventy-two trillion, seven hundred thirty billion, five hundred thirty-four million, four hundred forty-seven thousand, six hundred three".