1388605077388 has 12 divisors (see below), whose sum is σ = 2430125665240. Its totient is φ = 694283458752.

The previous prime is 1388605077373. The next prime is 1388605077389. The reversal of 1388605077388 is 8837705068831.

It is not an unprimeable number, because it can be changed into a prime (1388605077389) 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, 4605606 + ... + 4897837.

Almost surely, 2^{1388605077388} is an apocalyptic number.

It is an amenable number.

1388605077388 is a deficient number, since it is larger than the sum of its proper divisors (1041520587852).

1388605077388 is a wasteful number, since it uses less digits than its factorization.

1388605077388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539976 (or 9539974 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 64.

The spelling of 1388605077388 in words is "one trillion, three hundred eighty-eight billion, six hundred five million, seventy-seven thousand, three hundred eighty-eight".