72416320775987 has 2 divisors, whose sum is σ = 72416320775988. Its totient is φ = 72416320775986.

The previous prime is 72416320775971. The next prime is 72416320776029. The reversal of 72416320775987 is 78957702361427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72416320775987 - 2⁴ = 72416320775971 is a prime.

It is not a weakly prime, because it can be changed into another prime (72416320778987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36208160387993 + 36208160387994.

It is an arithmetic number, because the mean of its divisors is an integer number (36208160387994).

It is a 1-persistent number, because it is pandigital, but 2⋅72416320775987 = 144832641551974 is not.

Almost surely, 2^{72416320775987} is an apocalyptic number.

72416320775987 is a deficient number, since it is larger than the sum of its proper divisors (1).

72416320775987 is an equidigital number, since it uses as much as digits as its factorization.

72416320775987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248935680, while the sum is 68.

The spelling of 72416320775987 in words is "seventy-two trillion, four hundred sixteen billion, three hundred twenty million, seven hundred seventy-five thousand, nine hundred eighty-seven".