138861773176 has 32 divisors (see below), whose sum is σ = 297573101280. Its totient is φ = 59509756800.

The previous prime is 138861773153. The next prime is 138861773191. The reversal of 138861773176 is 671377168831.

It is a happy number.

It is a super-4 number, since 4×138861773176⁴ (a number of 46 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 138861773176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2285106 + ... + 2345086.

It is an arithmetic number, because the mean of its divisors is an integer number (9299159415).

Almost surely, 2^138861773176 is an apocalyptic number.

It is an amenable number.

138861773176 is an abundant number, since it is smaller than the sum of its proper divisors (158711328104).

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

138861773176 is a wasteful number, since it uses less digits than its factorization.

138861773176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101335 (or 101331 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 58.

The spelling of 138861773176 in words is "one hundred thirty-eight billion, eight hundred sixty-one million, seven hundred seventy-three thousand, one hundred seventy-six".