5549481030991 has 4 divisors (see below), whose sum is σ = 5619727626400. Its totient is φ = 5479234435584.

The previous prime is 5549481030941. The next prime is 5549481030997. The reversal of 5549481030991 is 1990301849455.

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 5549481030991 - 2⁹ = 5549481030479 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 (5549481030997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35123297586 + ... + 35123297743.

It is an arithmetic number, because the mean of its divisors is an integer number (1404931906600).

Almost surely, 2^{5549481030991} is an apocalyptic number.

5549481030991 is a deficient number, since it is larger than the sum of its proper divisors (70246595409).

5549481030991 is an equidigital number, since it uses as much as digits as its factorization.

5549481030991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70246595408.

The product of its (nonzero) digits is 6998400, while the sum is 58.

The spelling of 5549481030991 in words is "five trillion, five hundred forty-nine billion, four hundred eighty-one million, thirty thousand, nine hundred ninety-one".