73774403321 has 2 divisors, whose sum is σ = 73774403322. Its totient is φ = 73774403320.

The previous prime is 73774403309. The next prime is 73774403333. The reversal of 73774403321 is 12330447737.

It is a balanced prime because it is at equal distance from previous prime (73774403309) and next prime (73774403333).

It can be written as a sum of positive squares in only one way, i.e., 47550163600 + 26224239721 = 218060^2 + 161939^2 .

It is a cyclic number.

It is not a de Polignac number, because 73774403321 - 2¹⁰ = 73774402297 is a prime.

It is not a weakly prime, because it can be changed into another prime (73774403921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36887201660 + 36887201661.

It is an arithmetic number, because the mean of its divisors is an integer number (36887201661).

Almost surely, 2^73774403321 is an apocalyptic number.

It is an amenable number.

73774403321 is a deficient number, since it is larger than the sum of its proper divisors (1).

73774403321 is an equidigital number, since it uses as much as digits as its factorization.

73774403321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 41.

The spelling of 73774403321 in words is "seventy-three billion, seven hundred seventy-four million, four hundred three thousand, three hundred twenty-one".