72794449733 has 2 divisors, whose sum is σ = 72794449734. Its totient is φ = 72794449732.

The previous prime is 72794449631. The next prime is 72794449781. The reversal of 72794449733 is 33794449727.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61582392964 + 11212056769 = 248158^2 + 105887^2 .

It is a cyclic number.

It is not a de Polignac number, because 72794449733 - 2¹² = 72794445637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72794449033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36397224866 + 36397224867.

It is an arithmetic number, because the mean of its divisors is an integer number (36397224867).

Almost surely, 2^72794449733 is an apocalyptic number.

It is an amenable number.

72794449733 is a deficient number, since it is larger than the sum of its proper divisors (1).

72794449733 is an equidigital number, since it uses as much as digits as its factorization.

72794449733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 59.

The spelling of 72794449733 in words is "seventy-two billion, seven hundred ninety-four million, four hundred forty-nine thousand, seven hundred thirty-three".