1388018974848 has 256 divisors, whose sum is σ = 4040228160000. Its totient is φ = 418721587200.

The previous prime is 1388018974787. The next prime is 1388018974873. The reversal of 1388018974848 is 8484798108831.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1456472740 + ... + 1456473692.

It is an arithmetic number, because the mean of its divisors is an integer number (15782141250).

Almost surely, 2^{1388018974848} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1388018974848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2020114080000).

1388018974848 is an abundant number, since it is smaller than the sum of its proper divisors (2652209185152).

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

1388018974848 is a wasteful number, since it uses less digits than its factorization.

1388018974848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 99090432, while the sum is 69.

The spelling of 1388018974848 in words is "one trillion, three hundred eighty-eight billion, eighteen million, nine hundred seventy-four thousand, eight hundred forty-eight".