5138401068 has 36 divisors (see below), whose sum is σ = 12991633200. Its totient is φ = 1712418336.

The previous prime is 5138401061. The next prime is 5138401087. The reversal of 5138401068 is 8601048315.

5138401068 is a `hidden beast` number, since 513 + 84 + 0 + 1 + 0 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5138401061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181146 + ... + 207582.

It is an arithmetic number, because the mean of its divisors is an integer number (360878700).

Almost surely, 2^5138401068 is an apocalyptic number.

It is an amenable number.

5138401068 is an abundant number, since it is smaller than the sum of its proper divisors (7853232132).

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

5138401068 is a wasteful number, since it uses less digits than its factorization.

5138401068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31846 (or 31841 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 5138401068 is about 71682.6413296832. The cubic root of 5138401068 is about 1725.6100697853.

The spelling of 5138401068 in words is "five billion, one hundred thirty-eight million, four hundred one thousand, sixty-eight".