72360327991 has 32 divisors (see below), whose sum is σ = 87263640576. Its totient is φ = 58660800000.

The previous prime is 72360327953. The next prime is 72360328003. The reversal of 72360327991 is 19972306327.

It is not a de Polignac number, because 72360327991 - 2¹¹ = 72360325943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72360327901) 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 in 31 ways as a sum of consecutive naturals, for example, 14323416 + ... + 14328466.

It is an arithmetic number, because the mean of its divisors is an integer number (2726988768).

Almost surely, 2^72360327991 is an apocalyptic number.

72360327991 is a deficient number, since it is larger than the sum of its proper divisors (14903312585).

72360327991 is a wasteful number, since it uses less digits than its factorization.

72360327991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 72360327991 in words is "seventy-two billion, three hundred sixty million, three hundred twenty-seven thousand, nine hundred ninety-one".