5281051252138 has 32 divisors (see below), whose sum is σ = 8732010522240. Its totient is φ = 2384272154880.

The previous prime is 5281051252117. The next prime is 5281051252171. The reversal of 5281051252138 is 8312521501825.

It is a junction number, because it is equal to n+sod(n) for n = 5281051252094 and 5281051252103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10505995 + ... + 10997182.

It is an arithmetic number, because the mean of its divisors is an integer number (272875328820).

Almost surely, 2^{5281051252138} is an apocalyptic number.

5281051252138 is a deficient number, since it is larger than the sum of its proper divisors (3450959270102).

5281051252138 is a wasteful number, since it uses less digits than its factorization.

5281051252138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21503502.

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 5281051252138 in words is "five trillion, two hundred eighty-one billion, fifty-one million, two hundred fifty-two thousand, one hundred thirty-eight".