72360440539 has 2 divisors, whose sum is σ = 72360440540. Its totient is φ = 72360440538.

The previous prime is 72360440491. The next prime is 72360440611. The reversal of 72360440539 is 93504406327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72360440539 - 2¹⁵ = 72360407771 is a prime.

It is a super-2 number, since 2×72360440539² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72360440495 and 72360440504.

It is not a weakly prime, because it can be changed into another prime (72360440939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36180220269 + 36180220270.

It is an arithmetic number, because the mean of its divisors is an integer number (36180220270).

Almost surely, 2^72360440539 is an apocalyptic number.

72360440539 is a deficient number, since it is larger than the sum of its proper divisors (1).

72360440539 is an equidigital number, since it uses as much as digits as its factorization.

72360440539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 72360440539 in words is "seventy-two billion, three hundred sixty million, four hundred forty thousand, five hundred thirty-nine".