491366261914 has 32 divisors (see below), whose sum is σ = 883171330560. Its totient is φ = 202393422000.

The previous prime is 491366261863. The next prime is 491366261927. The reversal of 491366261914 is 419162663194.

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, 25545112 + ... + 25564339.

It is an arithmetic number, because the mean of its divisors is an integer number (27599104080).

Almost surely, 2^491366261914 is an apocalyptic number.

491366261914 is a deficient number, since it is larger than the sum of its proper divisors (391805068646).

491366261914 is a wasteful number, since it uses less digits than its factorization.

491366261914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51109506.

The product of its digits is 1679616, while the sum is 52.

The spelling of 491366261914 in words is "four hundred ninety-one billion, three hundred sixty-six million, two hundred sixty-one thousand, nine hundred fourteen".