491000704511 has 16 divisors (see below), whose sum is σ = 526511288160. Its totient is φ = 456262410240.

The previous prime is 491000704483. The next prime is 491000704541. The reversal of 491000704511 is 115407000194.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491000704511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491000704541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120866 + ... + 998303.

It is an arithmetic number, because the mean of its divisors is an integer number (32906955510).

Almost surely, 2^491000704511 is an apocalyptic number.

491000704511 is a deficient number, since it is larger than the sum of its proper divisors (35510583649).

491000704511 is a wasteful number, since it uses less digits than its factorization.

491000704511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119514.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 491000704511 in words is "four hundred ninety-one billion, seven hundred four thousand, five hundred eleven".