72630197041 has 4 divisors (see below), whose sum is σ = 72666568692. Its totient is φ = 72593825392.

The previous prime is 72630197039. The next prime is 72630197099. The reversal of 72630197041 is 14079103627.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24842488225 + 47787708816 = 157615^2 + 218604^2 .

It is a cyclic number.

It is not a de Polignac number, because 72630197041 - 2¹ = 72630197039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72630196985 and 72630197003.

It is not an unprimeable number, because it can be changed into a prime (72630197141) 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 3 ways as a sum of consecutive naturals, for example, 18182830 + ... + 18186823.

It is an arithmetic number, because the mean of its divisors is an integer number (18166642173).

Almost surely, 2^72630197041 is an apocalyptic number.

It is an amenable number.

72630197041 is a deficient number, since it is larger than the sum of its proper divisors (36371651).

72630197041 is a wasteful number, since it uses less digits than its factorization.

72630197041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36371650.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 72630197041 in words is "seventy-two billion, six hundred thirty million, one hundred ninety-seven thousand, forty-one".