5081161838 has 4 divisors (see below), whose sum is σ = 7621742760. Its totient is φ = 2540580918.

The previous prime is 5081161837. The next prime is 5081161843. The reversal of 5081161838 is 8381611805.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 5081161795 and 5081161804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5081161831) 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 as a sum of consecutive naturals, namely, 1270290458 + ... + 1270290461.

It is an arithmetic number, because the mean of its divisors is an integer number (1905435690).

Almost surely, 2^5081161838 is an apocalyptic number.

5081161838 is a deficient number, since it is larger than the sum of its proper divisors (2540580922).

5081161838 is a wasteful number, since it uses less digits than its factorization.

5081161838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540580921.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 5081161838 is about 71282.2687489673. The cubic root of 5081161838 is about 1719.1786503447.

The spelling of 5081161838 in words is "five billion, eighty-one million, one hundred sixty-one thousand, eight hundred thirty-eight".