491849591110 has 16 divisors (see below), whose sum is σ = 885343896000. Its totient is φ = 196736584896.

The previous prime is 491849591081. The next prime is 491849591117. The reversal of 491849591110 is 11195948194.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491849591117) 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, 284866 + ... + 1031914.

It is an arithmetic number, because the mean of its divisors is an integer number (55333993500).

Almost surely, 2^491849591110 is an apocalyptic number.

491849591110 is a deficient number, since it is larger than the sum of its proper divisors (393494304890).

491849591110 is a wasteful number, since it uses less digits than its factorization.

491849591110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812895.

The product of its (nonzero) digits is 466560, while the sum is 52.

The spelling of 491849591110 in words is "four hundred ninety-one billion, eight hundred forty-nine million, five hundred ninety-one thousand, one hundred ten".