1381938138882 has 24 divisors (see below), whose sum is σ = 3421942058496. Its totient is φ = 394839468216.

The previous prime is 1381938138829. The next prime is 1381938138943. The reversal of 1381938138882 is 2888318391831.

1381938138882 is a `hidden beast` number, since 1 + 381 + 93 + 8 + 13 + 88 + 82 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 5483881378 + ... + 5483881629.

It is an arithmetic number, because the mean of its divisors is an integer number (142580919104).

Almost surely, 2^{1381938138882} is an apocalyptic number.

1381938138882 is an abundant number, since it is smaller than the sum of its proper divisors (2040003919614).

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

1381938138882 is a wasteful number, since it uses less digits than its factorization.

1381938138882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10967763022 (or 10967763019 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The spelling of 1381938138882 in words is "one trillion, three hundred eighty-one billion, nine hundred thirty-eight million, one hundred thirty-eight thousand, eight hundred eighty-two".