491232772006 has 8 divisors (see below), whose sum is σ = 747846906840. Its totient is φ = 241950469728.

The previous prime is 491232771983. The next prime is 491232772081. The reversal of 491232772006 is 600277232194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832957971 + ... + 1832958238.

It is an arithmetic number, because the mean of its divisors is an integer number (93480863355).

Almost surely, 2^491232772006 is an apocalyptic number.

491232772006 is a deficient number, since it is larger than the sum of its proper divisors (256614134834).

491232772006 is a wasteful number, since it uses less digits than its factorization.

491232772006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665916278.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 491232772006 in words is "four hundred ninety-one billion, two hundred thirty-two million, seven hundred seventy-two thousand, six".