7138121733744 has 40 divisors (see below), whose sum is σ = 18441684573312. Its totient is φ = 2379175619520.

The previous prime is 7138121733737. The next prime is 7138121733749. The reversal of 7138121733744 is 4473371218317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138121733749) 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, 5614084 + ... + 6767139.

Almost surely, 2^{7138121733744} is an apocalyptic number.

It is an amenable number.

7138121733744 is an abundant number, since it is smaller than the sum of its proper divisors (11303562839568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7138121733744 is a wasteful number, since it uses less digits than its factorization.

7138121733744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393245 (or 12393239 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 51.

The spelling of 7138121733744 in words is "seven trillion, one hundred thirty-eight billion, one hundred twenty-one million, seven hundred thirty-three thousand, seven hundred forty-four".