491507012 has 24 divisors (see below), whose sum is σ = 892859520. Its totient is φ = 236576160.

The previous prime is 491506999. The next prime is 491507021. The reversal of 491507012 is 210705194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9962 + ... + 32897.

It is an arithmetic number, because the mean of its divisors is an integer number (37202480).

Almost surely, 2^491507012 is an apocalyptic number.

It is an amenable number.

491507012 is a deficient number, since it is larger than the sum of its proper divisors (401352508).

491507012 is a wasteful number, since it uses less digits than its factorization.

491507012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42971 (or 42969 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 491507012 is about 22169.9574198960. The cubic root of 491507012 is about 789.1809125174.

The spelling of 491507012 in words is "four hundred ninety-one million, five hundred seven thousand, twelve".