491874675 has 24 divisors (see below), whose sum is σ = 839470080. Its totient is φ = 253869600.

The previous prime is 491874673. The next prime is 491874697. The reversal of 491874675 is 576478194.

It is not a de Polignac number, because 491874675 - 2¹ = 491874673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491874673) 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, 103455 + ... + 108104.

It is an arithmetic number, because the mean of its divisors is an integer number (34977920).

Almost surely, 2^491874675 is an apocalyptic number.

491874675 is a deficient number, since it is larger than the sum of its proper divisors (347595405).

491874675 is a wasteful number, since it uses less digits than its factorization.

491874675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211603 (or 211598 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 491874675 is about 22178.2477892191. The cubic root of 491874675 is about 789.3776410123.

The spelling of 491874675 in words is "four hundred ninety-one million, eight hundred seventy-four thousand, six hundred seventy-five".