1388786340832 has 24 divisors (see below), whose sum is σ = 2982734300952. Its totient is φ = 631266518400.

The previous prime is 1388786340793. The next prime is 1388786340833. The reversal of 1388786340832 is 2380436878831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388786340833) 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, 1972707519 + ... + 1972708222.

It is an arithmetic number, because the mean of its divisors is an integer number (124280595873).

Almost surely, 2^{1388786340832} is an apocalyptic number.

It is an amenable number.

1388786340832 is an abundant number, since it is smaller than the sum of its proper divisors (1593947960120).

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

1388786340832 is a wasteful number, since it uses less digits than its factorization.

1388786340832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945415762 (or 3945415754 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 61.

The spelling of 1388786340832 in words is "one trillion, three hundred eighty-eight billion, seven hundred eighty-six million, three hundred forty thousand, eight hundred thirty-two".