491934352895 has 16 divisors (see below), whose sum is σ = 594557990400. Its totient is φ = 390727973664.

The previous prime is 491934352859. The next prime is 491934352913. The reversal of 491934352895 is 598253439194.

It is a cyclic number.

It is not a de Polignac number, because 491934352895 - 2¹⁰ = 491934351871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476006 + ... + 1100204.

It is an arithmetic number, because the mean of its divisors is an integer number (37159874400).

Almost surely, 2^491934352895 is an apocalyptic number.

491934352895 is a deficient number, since it is larger than the sum of its proper divisors (102623637505).

491934352895 is a wasteful number, since it uses less digits than its factorization.

491934352895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625334.

The product of its digits is 41990400, while the sum is 62.

The spelling of 491934352895 in words is "four hundred ninety-one billion, nine hundred thirty-four million, three hundred fifty-two thousand, eight hundred ninety-five".