8625775440 has 160 divisors (see below), whose sum is σ = 27529238016. Its totient is φ = 2233221120.

The previous prime is 8625775429. The next prime is 8625775453. The reversal of 8625775440 is 445775268.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8625775440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1230345 + ... + 1237335.

Almost surely, 2^8625775440 is an apocalyptic number.

8625775440 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 8625775440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13764619008).

8625775440 is an abundant number, since it is smaller than the sum of its proper divisors (18903462576).

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

8625775440 is a wasteful number, since it uses less digits than its factorization.

8625775440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157 (or 7151 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The square root of 8625775440 is about 92875.0528398235. The cubic root of 8625775440 is about 2050.8444222999.

The spelling of 8625775440 in words is "eight billion, six hundred twenty-five million, seven hundred seventy-five thousand, four hundred forty".