491522225194 has 32 divisors (see below), whose sum is σ = 989918891136. Its totient is φ = 176771229120.

The previous prime is 491522225177. The next prime is 491522225281.

It is a happy number.

491522225194 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×491522225194² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122755797 + ... + 122759800.

It is an arithmetic number, because the mean of its divisors is an integer number (30934965348).

Almost surely, 2^491522225194 is an apocalyptic number.

491522225194 is an abundant number, since it is smaller than the sum of its proper divisors (498396665942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491522225194 is a wasteful number, since it uses less digits than its factorization.

491522225194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245515630.

The product of its digits is 518400, while the sum is 46.

The spelling of 491522225194 in words is "four hundred ninety-one billion, five hundred twenty-two million, two hundred twenty-five thousand, one hundred ninety-four".