491711013466 has 16 divisors (see below), whose sum is σ = 750774782880. Its totient is φ = 241460609680.

The previous prime is 491711013359. The next prime is 491711013467. The reversal of 491711013466 is 664310117194.

It is not an unprimeable number, because it can be changed into a prime (491711013467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838536 + ... + 2088931.

It is an arithmetic number, because the mean of its divisors is an integer number (46923423930).

Almost surely, 2^491711013466 is an apocalyptic number.

491711013466 is a deficient number, since it is larger than the sum of its proper divisors (259063769414).

491711013466 is a wasteful number, since it uses less digits than its factorization.

491711013466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928589.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 491711013466 in words is "four hundred ninety-one billion, seven hundred eleven million, thirteen thousand, four hundred sixty-six".