7138121543434 has 48 divisors (see below), whose sum is σ = 12470603184000. Its totient is φ = 3055437002016.

The previous prime is 7138121543417. The next prime is 7138121543447. The reversal of 7138121543434 is 4343451218317.

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, 305049267 + ... + 305072665.

It is an arithmetic number, because the mean of its divisors is an integer number (259804233000).

Almost surely, 2^{7138121543434} is an apocalyptic number.

7138121543434 is a deficient number, since it is larger than the sum of its proper divisors (5332481640566).

7138121543434 is a wasteful number, since it uses less digits than its factorization.

7138121543434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27107 (or 27100 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The spelling of 7138121543434 in words is "seven trillion, one hundred thirty-eight billion, one hundred twenty-one million, five hundred forty-three thousand, four hundred thirty-four".