5438888345 has 32 divisors (see below), whose sum is σ = 7231680000. Its totient is φ = 3893908480.

The previous prime is 5438888311. The next prime is 5438888369.

It is a happy number.

5438888345 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5438888345 - 2¹⁸ = 5438626201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167581 + ... + 1172229.

It is an arithmetic number, because the mean of its divisors is an integer number (225990000).

Almost surely, 2^5438888345 is an apocalyptic number.

5438888345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5438888345 is a deficient number, since it is larger than the sum of its proper divisors (1792791655).

5438888345 is a wasteful number, since it uses less digits than its factorization.

5438888345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993.

The product of its digits is 14745600, while the sum is 56.

The square root of 5438888345 is about 73748.8192786840. The cubic root of 5438888345 is about 1758.6120627196.

It can be divided in two parts, 543 and 8888345, that added together give a palindrome (8888888).

The spelling of 5438888345 in words is "five billion, four hundred thirty-eight million, eight hundred eighty-eight thousand, three hundred forty-five".