8675747840 has 96 divisors (see below), whose sum is σ = 20867301000. Its totient is φ = 3461873664.

The previous prime is 8675747837. The next prime is 8675747869. The reversal of 8675747840 is 487475768.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4215645184 + 4460102656 = 64928^2 + 66784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5825816 + ... + 5827304.

Almost surely, 2^8675747840 is an apocalyptic number.

8675747840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8675747840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10433650500).

8675747840 is an abundant number, since it is smaller than the sum of its proper divisors (12191553160).

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

8675747840 is a wasteful number, since it uses less digits than its factorization.

8675747840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 56.

The square root of 8675747840 is about 93143.6945799339. The cubic root of 8675747840 is about 2054.7972394633.

The spelling of 8675747840 in words is "eight billion, six hundred seventy-five million, seven hundred forty-seven thousand, eight hundred forty".