491013496368 has 60 divisors (see below), whose sum is σ = 1374761299080. Its totient is φ = 163599049728.

The previous prime is 491013496361. The next prime is 491013496397. The reversal of 491013496368 is 863694310194.

491013496368 is a `hidden beast` number, since 4 + 91 + 0 + 1 + 3 + 496 + 3 + 68 = 666.

491013496368 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (491013496361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422758 + ... + 1077381.

It is an arithmetic number, because the mean of its divisors is an integer number (22912688318).

Almost surely, 2^491013496368 is an apocalyptic number.

491013496368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

491013496368 is an abundant number, since it is smaller than the sum of its proper divisors (883747802712).

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

491013496368 is a wasteful number, since it uses less digits than its factorization.

491013496368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502426 (or 1502417 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 491013496368 in words is "four hundred ninety-one billion, thirteen million, four hundred ninety-six thousand, three hundred sixty-eight".