388144277121 has 8 divisors (see below), whose sum is σ = 522861019744. Its totient is φ = 256095192960.

The previous prime is 388144277113. The next prime is 388144277167. The reversal of 388144277121 is 121772441883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 388144277121 - 2³ = 388144277113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388144277821) 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, 666914275 + ... + 666914856.

It is an arithmetic number, because the mean of its divisors is an integer number (65357627468).

Almost surely, 2^388144277121 is an apocalyptic number.

It is an amenable number.

388144277121 is a deficient number, since it is larger than the sum of its proper divisors (134716742623).

388144277121 is a wasteful number, since it uses less digits than its factorization.

388144277121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333829231.

The product of its digits is 602112, while the sum is 48.

The spelling of 388144277121 in words is "three hundred eighty-eight billion, one hundred forty-four million, two hundred seventy-seven thousand, one hundred twenty-one".