72464871289 has 2 divisors, whose sum is σ = 72464871290. Its totient is φ = 72464871288.

The previous prime is 72464871247. The next prime is 72464871301. The reversal of 72464871289 is 98217846427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68646620025 + 3818251264 = 262005^2 + 61792^2 .

It is a cyclic number.

It is not a de Polignac number, because 72464871289 - 2¹¹ = 72464869241 is a prime.

It is not a weakly prime, because it can be changed into another prime (72464871239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36232435644 + 36232435645.

It is an arithmetic number, because the mean of its divisors is an integer number (36232435645).

Almost surely, 2^72464871289 is an apocalyptic number.

It is an amenable number.

72464871289 is a deficient number, since it is larger than the sum of its proper divisors (1).

72464871289 is an equidigital number, since it uses as much as digits as its factorization.

72464871289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10838016, while the sum is 58.

The spelling of 72464871289 in words is "seventy-two billion, four hundred sixty-four million, eight hundred seventy-one thousand, two hundred eighty-nine".