5491669837 has 2 divisors, whose sum is σ = 5491669838. Its totient is φ = 5491669836.

The previous prime is 5491669811. The next prime is 5491669853. The reversal of 5491669837 is 7389661945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3515778436 + 1975891401 = 59294^2 + 44451^2 .

It is a cyclic number.

It is not a de Polignac number, because 5491669837 - 2¹⁵ = 5491637069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5491669867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745834918 + 2745834919.

It is an arithmetic number, because the mean of its divisors is an integer number (2745834919).

Almost surely, 2^5491669837 is an apocalyptic number.

It is an amenable number.

5491669837 is a deficient number, since it is larger than the sum of its proper divisors (1).

5491669837 is an equidigital number, since it uses as much as digits as its factorization.

5491669837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The square root of 5491669837 is about 74105.8016419767. The cubic root of 5491669837 is about 1764.2825544312.

The spelling of 5491669837 in words is "five billion, four hundred ninety-one million, six hundred sixty-nine thousand, eight hundred thirty-seven".