73093813081 has 2 divisors, whose sum is σ = 73093813082. Its totient is φ = 73093813080.

The previous prime is 73093812997. The next prime is 73093813087. The reversal of 73093813081 is 18031839037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62390048400 + 10703764681 = 249780^2 + 103459^2 .

It is a cyclic number.

It is not a de Polignac number, because 73093813081 - 2¹¹ = 73093811033 is a prime.

It is a super-2 number, since 2×73093813081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73093813087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36546906540 + 36546906541.

It is an arithmetic number, because the mean of its divisors is an integer number (36546906541).

Almost surely, 2^73093813081 is an apocalyptic number.

It is an amenable number.

73093813081 is a deficient number, since it is larger than the sum of its proper divisors (1).

73093813081 is an equidigital number, since it uses as much as digits as its factorization.

73093813081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 73093813081 in words is "seventy-three billion, ninety-three million, eight hundred thirteen thousand, eighty-one".