73635316897 has 2 divisors, whose sum is σ = 73635316898. Its totient is φ = 73635316896.

The previous prime is 73635316877. The next prime is 73635316907. The reversal of 73635316897 is 79861353637.

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., 63563990161 + 10071326736 = 252119^2 + 100356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73635316897 is a prime.

It is a super-2 number, since 2×73635316897² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73635316837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36817658448 + 36817658449.

It is an arithmetic number, because the mean of its divisors is an integer number (36817658449).

Almost surely, 2^73635316897 is an apocalyptic number.

It is an amenable number.

73635316897 is a deficient number, since it is larger than the sum of its proper divisors (1).

73635316897 is an equidigital number, since it uses as much as digits as its factorization.

73635316897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 58.

The spelling of 73635316897 in words is "seventy-three billion, six hundred thirty-five million, three hundred sixteen thousand, eight hundred ninety-seven".