5438126437 has 4 divisors (see below), whose sum is σ = 5438354380. Its totient is φ = 5437898496.

The previous prime is 5438126431. The next prime is 5438126443. The reversal of 5438126437 is 7346218345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7346218345 = 5 ⋅1469243669.

It is an interprime number because it is at equal distance from previous prime (5438126431) and next prime (5438126443).

It can be written as a sum of positive squares in 2 ways, for example, as 3671269281 + 1766857156 = 60591^2 + 42034^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438126437 - 2¹⁵ = 5438093669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5438126393 and 5438126402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438126431) 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, 73362 + ... + 127507.

It is an arithmetic number, because the mean of its divisors is an integer number (1359588595).

Almost surely, 2^5438126437 is an apocalyptic number.

It is an amenable number.

5438126437 is a deficient number, since it is larger than the sum of its proper divisors (227943).

5438126437 is a wasteful number, since it uses less digits than its factorization.

5438126437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227942.

The product of its digits is 483840, while the sum is 43.

The square root of 5438126437 is about 73743.6535371011. The cubic root of 5438126437 is about 1758.5299403516.

The spelling of 5438126437 in words is "five billion, four hundred thirty-eight million, one hundred twenty-six thousand, four hundred thirty-seven".