75485874647 has 2 divisors, whose sum is σ = 75485874648. Its totient is φ = 75485874646.

The previous prime is 75485874641. The next prime is 75485874661. The reversal of 75485874647 is 74647858457.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (74647858457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75485874647 - 2⁴ = 75485874631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75485874641) 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, 37742937323 + 37742937324.

It is an arithmetic number, because the mean of its divisors is an integer number (37742937324).

Almost surely, 2^75485874647 is an apocalyptic number.

75485874647 is a deficient number, since it is larger than the sum of its proper divisors (1).

75485874647 is an equidigital number, since it uses as much as digits as its factorization.

75485874647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 210739200, while the sum is 65.

The spelling of 75485874647 in words is "seventy-five billion, four hundred eighty-five million, eight hundred seventy-four thousand, six hundred forty-seven".