474443215591 has 2 divisors, whose sum is σ = 474443215592. Its totient is φ = 474443215590.

The previous prime is 474443215523. The next prime is 474443215601. The reversal of 474443215591 is 195512344474.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474443215591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474443215091) 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, 237221607795 + 237221607796.

It is an arithmetic number, because the mean of its divisors is an integer number (237221607796).

Almost surely, 2^474443215591 is an apocalyptic number.

474443215591 is a deficient number, since it is larger than the sum of its proper divisors (1).

474443215591 is an equidigital number, since it uses as much as digits as its factorization.

474443215591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 49.

The spelling of 474443215591 in words is "four hundred seventy-four billion, four hundred forty-three million, two hundred fifteen thousand, five hundred ninety-one".