1388876388775 has 12 divisors (see below), whose sum is σ = 1727816525512. Its totient is φ = 1107481883040.

The previous prime is 1388876388763. The next prime is 1388876388791. The reversal of 1388876388775 is 5778836788831.

It is a de Polignac number, because none of the positive numbers 2^k-1388876388775 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1388876388695 and 1388876388704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90472872 + ... + 90488221.

Almost surely, 2^{1388876388775} is an apocalyptic number.

1388876388775 is a deficient number, since it is larger than the sum of its proper divisors (338940136737).

1388876388775 is a wasteful number, since it uses less digits than its factorization.

1388876388775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180961410 (or 180961405 counting only the distinct ones).

The product of its digits is 3034644480, while the sum is 79.

The spelling of 1388876388775 in words is "one trillion, three hundred eighty-eight billion, eight hundred seventy-six million, three hundred eighty-eight thousand, seven hundred seventy-five".