8378642371 has 8 divisors (see below), whose sum is σ = 9363272688. Its totient is φ = 7431168000.

The previous prime is 8378642369. The next prime is 8378642381. The reversal of 8378642371 is 1732468738.

It is a happy number.

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

It is not a de Polignac number, because 8378642371 - 2¹ = 8378642369 is a prime.

It is a super-2 number, since 2×8378642371² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8378642381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9288510 + ... + 9289411.

It is an arithmetic number, because the mean of its divisors is an integer number (1170409086).

Almost surely, 2^8378642371 is an apocalyptic number.

8378642371 is a deficient number, since it is larger than the sum of its proper divisors (984630317).

8378642371 is a wasteful number, since it uses less digits than its factorization.

8378642371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18577973.

The product of its digits is 1354752, while the sum is 49.

The square root of 8378642371 is about 91534.9243239978. The cubic root of 8378642371 is about 2031.0684088477.

The spelling of 8378642371 in words is "eight billion, three hundred seventy-eight million, six hundred forty-two thousand, three hundred seventy-one".