72800000797 has 2 divisors, whose sum is σ = 72800000798. Its totient is φ = 72800000796.

The previous prime is 72800000759. The next prime is 72800000827. The reversal of 72800000797 is 79700000827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66817597081 + 5982403716 = 258491^2 + 77346^2 .

It is a cyclic number.

It is not a de Polignac number, because 72800000797 - 2¹¹ = 72799998749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72800000597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36400000398 + 36400000399.

It is an arithmetic number, because the mean of its divisors is an integer number (36400000399).

Almost surely, 2^72800000797 is an apocalyptic number.

It is an amenable number.

72800000797 is a deficient number, since it is larger than the sum of its proper divisors (1).

72800000797 is an equidigital number, since it uses as much as digits as its factorization.

72800000797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 72800000797 in words is "seventy-two billion, eight hundred million, seven hundred ninety-seven", and thus it is an aban number.