491103326592 has 192 divisors, whose sum is σ = 1551751765200. Its totient is φ = 154071465984.

The previous prime is 491103326563. The next prime is 491103326617. The reversal of 491103326592 is 295623301194.

491103326592 is a `hidden beast` number, since 4 + 9 + 1 + 1 + 0 + 33 + 26 + 592 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×491103326592² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64384 + ... + 993152.

Almost surely, 2^491103326592 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 491103326592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775875882600).

491103326592 is an abundant number, since it is smaller than the sum of its proper divisors (1060648438608).

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

491103326592 is an equidigital number, since it uses as much as digits as its factorization.

491103326592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928815 (or 928791 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 491103326592 in words is "four hundred ninety-one billion, one hundred three million, three hundred twenty-six thousand, five hundred ninety-two".