75847874891 has 2 divisors, whose sum is σ = 75847874892. Its totient is φ = 75847874890.

The previous prime is 75847874833. The next prime is 75847874897. The reversal of 75847874891 is 19847874857.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19847874857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75847874891 - 2²² = 75843680587 is a prime.

It is not a weakly prime, because it can be changed into another prime (75847874897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37923937445 + 37923937446.

It is an arithmetic number, because the mean of its divisors is an integer number (37923937446).

Almost surely, 2^75847874891 is an apocalyptic number.

75847874891 is a deficient number, since it is larger than the sum of its proper divisors (1).

75847874891 is an equidigital number, since it uses as much as digits as its factorization.

75847874891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126443520, while the sum is 68.

The spelling of 75847874891 in words is "seventy-five billion, eight hundred forty-seven million, eight hundred seventy-four thousand, eight hundred ninety-one".