72530771359 has 2 divisors, whose sum is σ = 72530771360. Its totient is φ = 72530771358.

The previous prime is 72530771333. The next prime is 72530771381. The reversal of 72530771359 is 95317703527.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72530771359 - 2⁷ = 72530771231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72530771309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36265385679 + 36265385680.

It is an arithmetic number, because the mean of its divisors is an integer number (36265385680).

Almost surely, 2^72530771359 is an apocalyptic number.

72530771359 is a deficient number, since it is larger than the sum of its proper divisors (1).

72530771359 is an equidigital number, since it uses as much as digits as its factorization.

72530771359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1389150, while the sum is 49.

The spelling of 72530771359 in words is "seventy-two billion, five hundred thirty million, seven hundred seventy-one thousand, three hundred fifty-nine".