38209433978884 has 27 divisors (see below), whose sum is σ = 77783666769543. Its totient is φ = 16375434616968.

The previous prime is 38209433978839. The next prime is 38209433978917. The reversal of 38209433978884 is 48887933490283.

The square root of 38209433978884 is 6181378.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×38209433978884³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38209433978884.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 86318529 + ... + 86760055.

Almost surely, 2^{38209433978884} is an apocalyptic number.

38209433978884 is the 6181378-th square number.

It is an amenable number.

38209433978884 is an abundant number, since it is smaller than the sum of its proper divisors (39574232790659).

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

38209433978884 is an frugal number, since it uses more digits than its factorization.

38209433978884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883072 (or 441536 counting only the distinct ones).

The product of its (nonzero) digits is 2006581248, while the sum is 76.

The spelling of 38209433978884 in words is "thirty-eight trillion, two hundred nine billion, four hundred thirty-three million, nine hundred seventy-eight thousand, eight hundred eighty-four".