5436338991 has 16 divisors (see below), whose sum is σ = 7326075744. Its totient is φ = 3585613824.

The previous prime is 5436338987. The next prime is 5436339023. The reversal of 5436338991 is 1998336345.

It is a happy number.

5436338991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5436338991 - 2² = 5436338987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436338911) 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 in 15 ways as a sum of consecutive naturals, for example, 84975 + ... + 134511.

It is an arithmetic number, because the mean of its divisors is an integer number (457879734).

Almost surely, 2^5436338991 is an apocalyptic number.

5436338991 is a deficient number, since it is larger than the sum of its proper divisors (1889736753).

5436338991 is a wasteful number, since it uses less digits than its factorization.

5436338991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49930.

The product of its digits is 2099520, while the sum is 51.

The square root of 5436338991 is about 73731.5332201901. The cubic root of 5436338991 is about 1758.3372501060.

The spelling of 5436338991 in words is "five billion, four hundred thirty-six million, three hundred thirty-eight thousand, nine hundred ninety-one".