7138121545832 has 32 divisors (see below), whose sum is σ = 14253185622600. Its totient is φ = 3339699154944.

The previous prime is 7138121545831. The next prime is 7138121545843. The reversal of 7138121545832 is 2385451218317.

It can be written as a sum of positive squares in 4 ways, for example, as 6810669795076 + 327451750756 = 2609726^2 + 572234^2 .

It is not an unprimeable number, because it can be changed into a prime (7138121545831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151670657 + ... + 151717712.

Almost surely, 2^{7138121545832} is an apocalyptic number.

It is an amenable number.

7138121545832 is a deficient number, since it is larger than the sum of its proper divisors (7115064076768).

7138121545832 is a wasteful number, since it uses less digits than its factorization.

7138121545832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303388565 (or 303388561 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The spelling of 7138121545832 in words is "seven trillion, one hundred thirty-eight billion, one hundred twenty-one million, five hundred forty-five thousand, eight hundred thirty-two".