5385816138 has 24 divisors (see below), whose sum is σ = 11442533472. Its totient is φ = 1689667264.

The previous prime is 5385816109. The next prime is 5385816143. The reversal of 5385816138 is 8316185835.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1551270 + ... + 1554737.

It is an arithmetic number, because the mean of its divisors is an integer number (476772228).

Almost surely, 2^5385816138 is an apocalyptic number.

5385816138 is an abundant number, since it is smaller than the sum of its proper divisors (6056717334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5385816138 is a wasteful number, since it uses less digits than its factorization.

5385816138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106046 (or 3106029 counting only the distinct ones).

The product of its digits is 691200, while the sum is 48.

The square root of 5385816138 is about 73388.1198696356. The cubic root of 5385816138 is about 1752.8732270209.

It can be divided in two parts, 53858 and 16138, that added together give a palindrome (69996).

The spelling of 5385816138 in words is "five billion, three hundred eighty-five million, eight hundred sixteen thousand, one hundred thirty-eight".