5438769749 has 12 divisors (see below), whose sum is σ = 6497727084. Its totient is φ = 4535806464.

The previous prime is 5438769733. The next prime is 5438769751. The reversal of 5438769749 is 9479678345.

It can be written as a sum of positive squares in 2 ways, for example, as 5284563025 + 154206724 = 72695^2 + 12418^2 .

It is not a de Polignac number, because 5438769749 - 2⁴ = 5438769733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5438769691 and 5438769700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438769709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1498124 + ... + 1501749.

It is an arithmetic number, because the mean of its divisors is an integer number (541477257).

Almost surely, 2^5438769749 is an apocalyptic number.

It is an amenable number.

5438769749 is a deficient number, since it is larger than the sum of its proper divisors (1058957335).

5438769749 is a wasteful number, since it uses less digits than its factorization.

5438769749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999924 (or 2999917 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 62.

The square root of 5438769749 is about 73748.0152207502. The cubic root of 5438769749 is about 1758.5992803360.

The spelling of 5438769749 in words is "five billion, four hundred thirty-eight million, seven hundred sixty-nine thousand, seven hundred forty-nine".