72175268797 has 2 divisors, whose sum is σ = 72175268798. Its totient is φ = 72175268796.

The previous prime is 72175268741. The next prime is 72175268813. The reversal of 72175268797 is 79786257127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45972076921 + 26203191876 = 214411^2 + 161874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72175268797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72175268717) 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 as a sum of consecutive naturals, namely, 36087634398 + 36087634399.

It is an arithmetic number, because the mean of its divisors is an integer number (36087634399).

Almost surely, 2^72175268797 is an apocalyptic number.

It is an amenable number.

72175268797 is a deficient number, since it is larger than the sum of its proper divisors (1).

72175268797 is an equidigital number, since it uses as much as digits as its factorization.

72175268797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20744640, while the sum is 61.

The spelling of 72175268797 in words is "seventy-two billion, one hundred seventy-five million, two hundred sixty-eight thousand, seven hundred ninety-seven".