75847074857 has 4 divisors (see below), whose sum is σ = 76760895120. Its totient is φ = 74933254596.

The previous prime is 75847074827. The next prime is 75847074883.

75847074857 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75847074857 - 2⁸ = 75847074601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75847074857.

It is not an unprimeable number, because it can be changed into a prime (75847074827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456910007 + ... + 456910172.

It is an arithmetic number, because the mean of its divisors is an integer number (19190223780).

Almost surely, 2^75847074857 is an apocalyptic number.

It is an amenable number.

75847074857 is a deficient number, since it is larger than the sum of its proper divisors (913820263).

75847074857 is an equidigital number, since it uses as much as digits as its factorization.

75847074857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913820262.

The product of its (nonzero) digits is 61465600, while the sum is 62.

The spelling of 75847074857 in words is "seventy-five billion, eight hundred forty-seven million, seventy-four thousand, eight hundred fifty-seven".