8378642370 has 64 divisors (see below), whose sum is σ = 23038960896. Its totient is φ = 1910323200.

The previous prime is 8378642369. The next prime is 8378642381. The reversal of 8378642370 is 732468738.

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, 34462 + ... + 133958.

It is an arithmetic number, because the mean of its divisors is an integer number (359983764).

Almost surely, 2^8378642370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8378642370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11519480448).

8378642370 is an abundant number, since it is smaller than the sum of its proper divisors (14660318526).

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

8378642370 is a wasteful number, since it uses less digits than its factorization.

8378642370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99915.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The square root of 8378642370 is about 91534.9243185354. The cubic root of 8378642370 is about 2031.0684087668.

The spelling of 8378642370 in words is "eight billion, three hundred seventy-eight million, six hundred forty-two thousand, three hundred seventy".