1367851638138 has 32 divisors (see below), whose sum is σ = 2738366092800. Its totient is φ = 455506864176.

The previous prime is 1367851638079. The next prime is 1367851638169. The reversal of 1367851638138 is 8318361587631.

It is a happy number.

It is a super-2 number, since 2×1367851638138² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70574533 + ... + 70593911.

It is an arithmetic number, because the mean of its divisors is an integer number (85573940400).

Almost surely, 2^{1367851638138} is an apocalyptic number.

1367851638138 is an abundant number, since it is smaller than the sum of its proper divisors (1370514454662).

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

1367851638138 is a wasteful number, since it uses less digits than its factorization.

1367851638138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30226.

The product of its digits is 17418240, while the sum is 60.

The spelling of 1367851638138 in words is "one trillion, three hundred sixty-seven billion, eight hundred fifty-one million, six hundred thirty-eight thousand, one hundred thirty-eight".