5436438977 has 4 divisors (see below), whose sum is σ = 5623902420. Its totient is φ = 5248975536.

The previous prime is 5436438923. The next prime is 5436438979. The reversal of 5436438977 is 7798346345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7798346345 = 5 ⋅1559669269.

It can be written as a sum of positive squares in 2 ways, for example, as 1413835201 + 4022603776 = 37601^2 + 63424^2 .

It is a cyclic number.

It is not a de Polignac number, because 5436438977 - 2¹² = 5436434881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5436438979) 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 3 ways as a sum of consecutive naturals, for example, 93731678 + ... + 93731735.

It is an arithmetic number, because the mean of its divisors is an integer number (1405975605).

Almost surely, 2^5436438977 is an apocalyptic number.

It is an amenable number.

5436438977 is a deficient number, since it is larger than the sum of its proper divisors (187463443).

5436438977 is a wasteful number, since it uses less digits than its factorization.

5436438977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187463442.

The product of its digits is 15240960, while the sum is 56.

The square root of 5436438977 is about 73732.2112580384. The cubic root of 5436438977 is about 1758.3480299114.

The spelling of 5436438977 in words is "five billion, four hundred thirty-six million, four hundred thirty-eight thousand, nine hundred seventy-seven".