5438893109 has 4 divisors (see below), whose sum is σ = 5857269516. Its totient is φ = 5020516704.

The previous prime is 5438893093. The next prime is 5438893121. The reversal of 5438893109 is 9013988345.

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

It can be written as a sum of positive squares in 2 ways, for example, as 342361009 + 5096532100 = 18503^2 + 71390^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438893109 - 2⁴ = 5438893093 is a prime.

It is a super-2 number, since 2×5438893109² = 59163116502255371762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438893169) 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, 209188184 + ... + 209188209.

It is an arithmetic number, because the mean of its divisors is an integer number (1464317379).

Almost surely, 2^5438893109 is an apocalyptic number.

It is an amenable number.

5438893109 is a deficient number, since it is larger than the sum of its proper divisors (418376407).

5438893109 is a wasteful number, since it uses less digits than its factorization.

5438893109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418376406.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 5438893109 is about 73748.8515774992. The cubic root of 5438893109 is about 1758.6125761839.

The spelling of 5438893109 in words is "five billion, four hundred thirty-eight million, eight hundred ninety-three thousand, one hundred nine".