75840545747 has 2 divisors, whose sum is σ = 75840545748. Its totient is φ = 75840545746.

The previous prime is 75840545689. The next prime is 75840545777. The reversal of 75840545747 is 74754504857.

It is a strong prime.

It is an emirp because it is prime and its reverse (74754504857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75840545747 - 2²⁰ = 75839497171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75840545692 and 75840545701.

It is not a weakly prime, because it can be changed into another prime (75840545777) 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, 37920272873 + 37920272874.

It is an arithmetic number, because the mean of its divisors is an integer number (37920272874).

Almost surely, 2^75840545747 is an apocalyptic number.

75840545747 is a deficient number, since it is larger than the sum of its proper divisors (1).

75840545747 is an equidigital number, since it uses as much as digits as its factorization.

75840545747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21952000, while the sum is 56.

The spelling of 75840545747 in words is "seventy-five billion, eight hundred forty million, five hundred forty-five thousand, seven hundred forty-seven".