73027723621 has 2 divisors, whose sum is σ = 73027723622. Its totient is φ = 73027723620.

The previous prime is 73027723597. The next prime is 73027723627. The reversal of 73027723621 is 12632772037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58412122596 + 14615601025 = 241686^2 + 120895^2 .

It is a cyclic number.

It is not a de Polignac number, because 73027723621 - 2¹⁷ = 73027592549 is a prime.

It is a super-2 number, since 2×73027723621² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73027723627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36513861810 + 36513861811.

It is an arithmetic number, because the mean of its divisors is an integer number (36513861811).

Almost surely, 2^73027723621 is an apocalyptic number.

It is an amenable number.

73027723621 is a deficient number, since it is larger than the sum of its proper divisors (1).

73027723621 is an equidigital number, since it uses as much as digits as its factorization.

73027723621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 40.

The spelling of 73027723621 in words is "seventy-three billion, twenty-seven million, seven hundred twenty-three thousand, six hundred twenty-one".