491593667112 has 128 divisors (see below), whose sum is σ = 1446348960000. Its totient is φ = 154173708288.

The previous prime is 491593667101. The next prime is 491593667141. The reversal of 491593667112 is 211766395194.

491593667112 is a `hidden beast` number, since 49 + 1 + 593 + 6 + 6 + 7 + 1 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11762589 + ... + 11804307.

It is an arithmetic number, because the mean of its divisors is an integer number (11299601250).

Almost surely, 2^491593667112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491593667112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723174480000).

491593667112 is an abundant number, since it is smaller than the sum of its proper divisors (954755292888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491593667112 is a wasteful number, since it uses less digits than its factorization.

491593667112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44960 (or 44950 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 491593667112 in words is "four hundred ninety-one billion, five hundred ninety-three million, six hundred sixty-seven thousand, one hundred twelve".