73227471637769 has 2 divisors, whose sum is σ = 73227471637770. Its totient is φ = 73227471637768.

The previous prime is 73227471637739. The next prime is 73227471637811. The reversal of 73227471637769 is 96773617472237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73222043632144 + 5428005625 = 8556988^2 + 73675^2 .

It is a cyclic number.

It is not a de Polignac number, because 73227471637769 - 2⁴⁴ = 55635285593353 is a prime.

It is a super-2 number, since 2×73227471637769² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73227471637739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36613735818884 + 36613735818885.

It is an arithmetic number, because the mean of its divisors is an integer number (36613735818885).

Almost surely, 2^{73227471637769} is an apocalyptic number.

It is an amenable number.

73227471637769 is a deficient number, since it is larger than the sum of its proper divisors (1).

73227471637769 is an equidigital number, since it uses as much as digits as its factorization.

73227471637769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 784147392, while the sum is 71.

The spelling of 73227471637769 in words is "seventy-three trillion, two hundred twenty-seven billion, four hundred seventy-one million, six hundred thirty-seven thousand, seven hundred sixty-nine".