491259370134 has 16 divisors (see below), whose sum is σ = 1058097105072. Its totient is φ = 151156729248.

The previous prime is 491259370109. The next prime is 491259370171. The reversal of 491259370134 is 431073952194.

It is a super-2 number, since 2×491259370134² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3149098449 + ... + 3149098604.

It is an arithmetic number, because the mean of its divisors is an integer number (66131069067).

Almost surely, 2^491259370134 is an apocalyptic number.

491259370134 is an abundant number, since it is smaller than the sum of its proper divisors (566837734938).

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

491259370134 is a wasteful number, since it uses less digits than its factorization.

491259370134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298197071.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 491259370134 in words is "four hundred ninety-one billion, two hundred fifty-nine million, three hundred seventy thousand, one hundred thirty-four".