72363233653 has 2 divisors, whose sum is σ = 72363233654. Its totient is φ = 72363233652.

The previous prime is 72363233633. The next prime is 72363233689. The reversal of 72363233653 is 35633236327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41821477009 + 30541756644 = 204503^2 + 174762^2 .

It is a cyclic number.

It is not a de Polignac number, because 72363233653 - 2²¹ = 72361136501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72363233633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36181616826 + 36181616827.

It is an arithmetic number, because the mean of its divisors is an integer number (36181616827).

Almost surely, 2^72363233653 is an apocalyptic number.

It is an amenable number.

72363233653 is a deficient number, since it is larger than the sum of its proper divisors (1).

72363233653 is an equidigital number, since it uses as much as digits as its factorization.

72363233653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 43.

The spelling of 72363233653 in words is "seventy-two billion, three hundred sixty-three million, two hundred thirty-three thousand, six hundred fifty-three".