387177120338 has 18 divisors (see below), whose sum is σ = 589155758373. Its totient is φ = 190831161640.

The previous prime is 387177120329. The next prime is 387177120373. The reversal of 387177120338 is 833021771783.

It can be written as a sum of positive squares in 2 ways, for example, as 382694416129 + 4482704209 = 618623^2 + 66953^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=439987.

It is a super-2 number, since 2×387177120338² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 62475056 + ... + 62481252.

Almost surely, 2^387177120338 is an apocalyptic number.

387177120338 is a deficient number, since it is larger than the sum of its proper divisors (201978638035).

387177120338 is an frugal number, since it uses more digits than its factorization.

387177120338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12538 (or 6270 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

Multiplying 387177120338 by its sum of digits (50), we get a square (19358856016900 = 4399870²).

The spelling of 387177120338 in words is "three hundred eighty-seven billion, one hundred seventy-seven million, one hundred twenty thousand, three hundred thirty-eight".