72416247345791 has 2 divisors, whose sum is σ = 72416247345792. Its totient is φ = 72416247345790.

The previous prime is 72416247345787. The next prime is 72416247345811. The reversal of 72416247345791 is 19754374261427.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72416247345791 - 2² = 72416247345787 is a prime.

It is a super-2 number, since 2×72416247345791² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72416247345391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36208123672895 + 36208123672896.

It is an arithmetic number, because the mean of its divisors is an integer number (36208123672896).

Almost surely, 2^{72416247345791} is an apocalyptic number.

72416247345791 is a deficient number, since it is larger than the sum of its proper divisors (1).

72416247345791 is an equidigital number, since it uses as much as digits as its factorization.

72416247345791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71124480, while the sum is 62.

The spelling of 72416247345791 in words is "seventy-two trillion, four hundred sixteen billion, two hundred forty-seven million, three hundred forty-five thousand, seven hundred ninety-one".