72874719289 has 2 divisors, whose sum is σ = 72874719290. Its totient is φ = 72874719288.

The previous prime is 72874719157. The next prime is 72874719299. The reversal of 72874719289 is 98291747827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59187591225 + 13687128064 = 243285^2 + 116992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72874719289 is a prime.

It is a super-2 number, since 2×72874719289² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72874719289.

It is not a weakly prime, because it can be changed into another prime (72874719299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36437359644 + 36437359645.

It is an arithmetic number, because the mean of its divisors is an integer number (36437359645).

Almost surely, 2^72874719289 is an apocalyptic number.

It is an amenable number.

72874719289 is a deficient number, since it is larger than the sum of its proper divisors (1).

72874719289 is an equidigital number, since it uses as much as digits as its factorization.

72874719289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28449792, while the sum is 64.

The spelling of 72874719289 in words is "seventy-two billion, eight hundred seventy-four million, seven hundred nineteen thousand, two hundred eighty-nine".