138134469368 has 16 divisors (see below), whose sum is σ = 296002434480. Its totient is φ = 59200486848.

The previous prime is 138134469353. The next prime is 138134469371. The reversal of 138134469368 is 863964431831.

It is a super-2 number, since 2×138134469368² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 2466686953 = 138134469368 / (1 + 3 + 8 + 1 + 3 + 4 + 4 + 6 + 9 + 3 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233343421 + ... + 1233343532.

It is an arithmetic number, because the mean of its divisors is an integer number (18500152155).

Almost surely, 2^138134469368 is an apocalyptic number.

It is an amenable number.

138134469368 is an abundant number, since it is smaller than the sum of its proper divisors (157867965112).

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

138134469368 is a wasteful number, since it uses less digits than its factorization.

138134469368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466686966 (or 2466686962 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 56.

The spelling of 138134469368 in words is "one hundred thirty-eight billion, one hundred thirty-four million, four hundred sixty-nine thousand, three hundred sixty-eight".