384138255988 has 24 divisors (see below), whose sum is σ = 676810276352. Its totient is φ = 190764928224.

The previous prime is 384138255973. The next prime is 384138255989. The reversal of 384138255988 is 889552831483.

It is a super-2 number, since 2×384138255988² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384138255989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368181 + ... + 1624867.

Almost surely, 2^384138255988 is an apocalyptic number.

It is an amenable number.

384138255988 is a deficient number, since it is larger than the sum of its proper divisors (292672020364).

384138255988 is a wasteful number, since it uses less digits than its factorization.

384138255988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259231 (or 259229 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 64.

The spelling of 384138255988 in words is "three hundred eighty-four billion, one hundred thirty-eight million, two hundred fifty-five thousand, nine hundred eighty-eight".