491126344677 has 24 divisors (see below), whose sum is σ = 790667804160. Its totient is φ = 291938878080.

The previous prime is 491126344663. The next prime is 491126344691. The reversal of 491126344677 is 776443621194.

491126344677 is a `hidden beast` number, since 4 + 9 + 1 + 126 + 3 + 446 + 77 = 666.

It is an interprime number because it is at equal distance from previous prime (491126344663) and next prime (491126344691).

It is not a de Polignac number, because 491126344677 - 2⁷ = 491126344549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491126344607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84470149 + ... + 84475962.

It is an arithmetic number, because the mean of its divisors is an integer number (32944491840).

Almost surely, 2^491126344677 is an apocalyptic number.

It is an amenable number.

491126344677 is a deficient number, since it is larger than the sum of its proper divisors (299541459483).

491126344677 is a wasteful number, since it uses less digits than its factorization.

491126344677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168946153 (or 168946150 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 491126344677 in words is "four hundred ninety-one billion, one hundred twenty-six million, three hundred forty-four thousand, six hundred seventy-seven".