490921111544 has 8 divisors (see below), whose sum is σ = 920477084160. Its totient is φ = 245460555768.

The previous prime is 490921111543. The next prime is 490921111561. The reversal of 490921111544 is 445111129094.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490921111543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30682569464 + ... + 30682569479.

It is an arithmetic number, because the mean of its divisors is an integer number (115059635520).

Almost surely, 2^490921111544 is an apocalyptic number.

It is an amenable number.

490921111544 is a deficient number, since it is larger than the sum of its proper divisors (429555972616).

490921111544 is a wasteful number, since it uses less digits than its factorization.

490921111544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61365138949 (or 61365138945 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 490921111544 in words is "four hundred ninety billion, nine hundred twenty-one million, one hundred eleven thousand, five hundred forty-four".