384308855172 has 36 divisors (see below), whose sum is σ = 1059760783536. Its totient is φ = 116457228720.

The previous prime is 384308855141. The next prime is 384308855197. The reversal of 384308855172 is 271558803483.

384308855172 is a `hidden beast` number, since 3 + 8 + 4 + 3 + 0 + 88 + 551 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×384308855172² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485238058 + ... + 485238849.

Almost surely, 2^384308855172 is an apocalyptic number.

It is an amenable number.

384308855172 is an abundant number, since it is smaller than the sum of its proper divisors (675451928364).

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

384308855172 is a wasteful number, since it uses less digits than its factorization.

384308855172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970476928 (or 970476923 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 384308855172 in words is "three hundred eighty-four billion, three hundred eight million, eight hundred fifty-five thousand, one hundred seventy-two".