491405222504194 has 16 divisors (see below), whose sum is σ = 739236706500600. Its totient is φ = 244993063744000.

The previous prime is 491405222504143. The next prime is 491405222504197.

491405222504194 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 261274411080225 + 230130811423969 = 16163985^2 + 15170063^2 .

It is not an unprimeable number, because it can be changed into a prime (491405222504197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6362557 + ... + 31988944.

Almost surely, 2^{491405222504194} is an apocalyptic number.

491405222504194 is a deficient number, since it is larger than the sum of its proper divisors (247831483996406).

491405222504194 is a wasteful number, since it uses less digits than its factorization.

491405222504194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38370005.

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 491405222504194 in words is "four hundred ninety-one trillion, four hundred five billion, two hundred twenty-two million, five hundred four thousand, one hundred ninety-four".