8127884381 has 8 divisors (see below), whose sum is σ = 8324321280. Its totient is φ = 7931784672.

The previous prime is 8127884357. The next prime is 8127884407. The reversal of 8127884381 is 1834887218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8127884381 is a prime.

It is a super-2 number, since 2×8127884381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8127884341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35165 + ... + 132258.

It is an arithmetic number, because the mean of its divisors is an integer number (1040540160).

Almost surely, 2^8127884381 is an apocalyptic number.

It is an amenable number.

8127884381 is a deficient number, since it is larger than the sum of its proper divisors (196436899).

8127884381 is a wasteful number, since it uses less digits than its factorization.

8127884381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168595.

The product of its digits is 688128, while the sum is 50.

The square root of 8127884381 is about 90154.7801339452. The cubic root of 8127884381 is about 2010.6007445849.

The spelling of 8127884381 in words is "eight billion, one hundred twenty-seven million, eight hundred eighty-four thousand, three hundred eighty-one".