1378841664376 has 24 divisors (see below), whose sum is σ = 2841724299960. Its totient is φ = 626746210640.

The previous prime is 1378841664337. The next prime is 1378841664397. The reversal of 1378841664376 is 6734661488731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 712210636 + ... + 712212571.

It is an arithmetic number, because the mean of its divisors is an integer number (118405179165).

Almost surely, 2^{1378841664376} is an apocalyptic number.

It is an amenable number.

1378841664376 is an abundant number, since it is smaller than the sum of its proper divisors (1462882635584).

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

1378841664376 is a wasteful number, since it uses less digits than its factorization.

1378841664376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424423235 (or 1424423220 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 64.

The spelling of 1378841664376 in words is "one trillion, three hundred seventy-eight billion, eight hundred forty-one million, six hundred sixty-four thousand, three hundred seventy-six".