1388404488192 has 48 divisors (see below), whose sum is σ = 3701508075720. Its totient is φ = 462801494016.

The previous prime is 1388404488139. The next prime is 1388404488197. The reversal of 1388404488192 is 2918844048831.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388404488197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112982503 + ... + 112994790.

Almost surely, 2^{1388404488192} is an apocalyptic number.

1388404488192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1388404488192 is an abundant number, since it is smaller than the sum of its proper divisors (2313103587528).

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

1388404488192 is an equidigital number, since it uses as much as digits as its factorization.

1388404488192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225977318 (or 225977298 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 60.

The spelling of 1388404488192 in words is "one trillion, three hundred eighty-eight billion, four hundred four million, four hundred eighty-eight thousand, one hundred ninety-two".