4491333800491 has 4 divisors (see below), whose sum is σ = 4491369253800. Its totient is φ = 4491298347184.

The previous prime is 4491333800461. The next prime is 4491333800537. The reversal of 4491333800491 is 1940083331944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4491333800491 - 2⁷ = 4491333800363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4491333800431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17535946 + ... + 17790223.

It is an arithmetic number, because the mean of its divisors is an integer number (1122842313450).

Almost surely, 2^{4491333800491} is an apocalyptic number.

4491333800491 is a deficient number, since it is larger than the sum of its proper divisors (35453309).

4491333800491 is a wasteful number, since it uses less digits than its factorization.

4491333800491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35453308.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 4491333800491 in words is "four trillion, four hundred ninety-one billion, three hundred thirty-three million, eight hundred thousand, four hundred ninety-one".