8366971840 has 28 divisors (see below), whose sum is σ = 19923852456. Its totient is φ = 3346788608.

The previous prime is 8366971831. The next prime is 8366971843. The reversal of 8366971840 is 481796638.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8366971843) 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 3 ways as a sum of consecutive naturals, for example, 13073074 + ... + 13073713.

Almost surely, 2^8366971840 is an apocalyptic number.

8366971840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8366971840 is an abundant number, since it is smaller than the sum of its proper divisors (11556880616).

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

8366971840 is a wasteful number, since it uses less digits than its factorization.

8366971840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26146804 (or 26146794 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 8366971840 is about 91471.1530483791. The cubic root of 8366971840 is about 2030.1249520667.

The spelling of 8366971840 in words is "eight billion, three hundred sixty-six million, nine hundred seventy-one thousand, eight hundred forty".