8378457570 has 288 divisors, whose sum is σ = 26428446720. Its totient is φ = 1839358080.

The previous prime is 8378457551. The next prime is 8378457583. The reversal of 8378457570 is 757548738.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 43866175 + ... + 43866365.

It is an arithmetic number, because the mean of its divisors is an integer number (91765440).

Almost surely, 2^8378457570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8378457570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13214223360).

8378457570 is an abundant number, since it is smaller than the sum of its proper divisors (18049989150).

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

8378457570 is a wasteful number, since it uses less digits than its factorization.

8378457570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 54.

The square root of 8378457570 is about 91533.9148621974. The cubic root of 8378457570 is about 2031.0534761885.

The spelling of 8378457570 in words is "eight billion, three hundred seventy-eight million, four hundred fifty-seven thousand, five hundred seventy".