7138144628505 has 24 divisors (see below), whose sum is σ = 13497582571200. Its totient is φ = 3460918607520.

The previous prime is 7138144628473. The next prime is 7138144628513. The reversal of 7138144628505 is 5058264418317.

It is a happy number.

7138144628505 is a `hidden beast` number, since 7 + 1 + 3 + 8 + 1 + 4 + 4 + 628 + 5 + 0 + 5 = 666.

7138144628505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7138144628505 - 2⁵ = 7138144628473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7210246605 + ... + 7210247594.

It is an arithmetic number, because the mean of its divisors is an integer number (562399273800).

Almost surely, 2^{7138144628505} is an apocalyptic number.

It is an amenable number.

7138144628505 is a deficient number, since it is larger than the sum of its proper divisors (6359437942695).

7138144628505 is a wasteful number, since it uses less digits than its factorization.

7138144628505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14420494221 (or 14420494218 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 7138144628505 in words is "seven trillion, one hundred thirty-eight billion, one hundred forty-four million, six hundred twenty-eight thousand, five hundred five".