74574573791 has 2 divisors, whose sum is σ = 74574573792. Its totient is φ = 74574573790.

The previous prime is 74574573721. The next prime is 74574573797. The reversal of 74574573791 is 19737547547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74574573791 is a prime.

It is a super-2 number, since 2×74574573791² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74574573791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74574573797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37287286895 + 37287286896.

It is an arithmetic number, because the mean of its divisors is an integer number (37287286896).

Almost surely, 2^74574573791 is an apocalyptic number.

74574573791 is a deficient number, since it is larger than the sum of its proper divisors (1).

74574573791 is an equidigital number, since it uses as much as digits as its factorization.

74574573791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25930800, while the sum is 59.

The spelling of 74574573791 in words is "seventy-four billion, five hundred seventy-four million, five hundred seventy-three thousand, seven hundred ninety-one".