491126246416 has 45 divisors (see below), whose sum is σ = 1030460778711. Its totient is φ = 226656832896.

The previous prime is 491126246389. The next prime is 491126246431. The reversal of 491126246416 is 614642621194.

The square root of 491126246416 is 700804.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 19322112016 + 471804134400 = 139004^2 + 686880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36435070 + ... + 36448546.

Almost surely, 2^491126246416 is an apocalyptic number.

491126246416 is the 700804-th square number.

It is an amenable number.

491126246416 is an abundant number, since it is smaller than the sum of its proper divisors (539334532295).

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

491126246416 is an frugal number, since it uses more digits than its factorization.

491126246416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26988 (or 13492 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The spelling of 491126246416 in words is "four hundred ninety-one billion, one hundred twenty-six million, two hundred forty-six thousand, four hundred sixteen".