72326227669 has 2 divisors, whose sum is σ = 72326227670. Its totient is φ = 72326227668.

The previous prime is 72326227619. The next prime is 72326227691. The reversal of 72326227669 is 96672262327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62705168100 + 9621059569 = 250410^2 + 98087^2 .

It is a cyclic number.

It is not a de Polignac number, because 72326227669 - 2¹³ = 72326219477 is a prime.

It is a super-2 number, since 2×72326227669² (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 (72326227619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36163113834 + 36163113835.

It is an arithmetic number, because the mean of its divisors is an integer number (36163113835).

Almost surely, 2^72326227669 is an apocalyptic number.

It is an amenable number.

72326227669 is a deficient number, since it is larger than the sum of its proper divisors (1).

72326227669 is an equidigital number, since it uses as much as digits as its factorization.

72326227669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 52.

The spelling of 72326227669 in words is "seventy-two billion, three hundred twenty-six million, two hundred twenty-seven thousand, six hundred sixty-nine".