72396101539 has 2 divisors, whose sum is σ = 72396101540. Its totient is φ = 72396101538.

The previous prime is 72396101513. The next prime is 72396101563. The reversal of 72396101539 is 93510169327.

It is a strong prime.

It is an emirp because it is prime and its reverse (93510169327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72396101539 - 2²¹ = 72394004387 is a prime.

It is not a weakly prime, because it can be changed into another prime (72396171539) 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, 36198050769 + 36198050770.

It is an arithmetic number, because the mean of its divisors is an integer number (36198050770).

Almost surely, 2^72396101539 is an apocalyptic number.

72396101539 is a deficient number, since it is larger than the sum of its proper divisors (1).

72396101539 is an equidigital number, since it uses as much as digits as its factorization.

72396101539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 72396101539 in words is "seventy-two billion, three hundred ninety-six million, one hundred one thousand, five hundred thirty-nine".