4038438634668 has 96 divisors (see below), whose sum is σ = 11273807059200. Its totient is φ = 1245487189248.

The previous prime is 4038438634631. The next prime is 4038438634673. The reversal of 4038438634668 is 8664368348304.

4038438634668 is a `hidden beast` number, since 4 + 0 + 3 + 84 + 38 + 63 + 466 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18532230 + ... + 18748877.

It is an arithmetic number, because the mean of its divisors is an integer number (117435490200).

Almost surely, 2^{4038438634668} is an apocalyptic number.

It is an amenable number.

4038438634668 is an abundant number, since it is smaller than the sum of its proper divisors (7235368424532).

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

4038438634668 is a wasteful number, since it uses less digits than its factorization.

4038438634668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37281196 (or 37281188 counting only the distinct ones).

The product of its (nonzero) digits is 191102976, while the sum is 63.

The spelling of 4038438634668 in words is "four trillion, thirty-eight billion, four hundred thirty-eight million, six hundred thirty-four thousand, six hundred sixty-eight".