73460453021 has 2 divisors, whose sum is σ = 73460453022. Its totient is φ = 73460453020.

The previous prime is 73460453009. The next prime is 73460453041. The reversal of 73460453021 is 12035406437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57283156921 + 16177296100 = 239339^2 + 127190^2 .

It is a cyclic number.

It is not a de Polignac number, because 73460453021 - 2¹⁰ = 73460451997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73460453041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36730226510 + 36730226511.

It is an arithmetic number, because the mean of its divisors is an integer number (36730226511).

Almost surely, 2^73460453021 is an apocalyptic number.

It is an amenable number.

73460453021 is a deficient number, since it is larger than the sum of its proper divisors (1).

73460453021 is an equidigital number, since it uses as much as digits as its factorization.

73460453021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 73460453021 its reverse (12035406437), we get a palindrome (85495859458).

The spelling of 73460453021 in words is "seventy-three billion, four hundred sixty million, four hundred fifty-three thousand, twenty-one".