8649610040 has 32 divisors (see below), whose sum is σ = 19791486000. Its totient is φ = 3401201664.

The previous prime is 8649610007. The next prime is 8649610063. The reversal of 8649610040 is 400169468.

It is a junction number, because it is equal to n+sod(n) for n = 8649609976 and 8649610003.

It is a congruent number.

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, 1830185 + ... + 1834904.

Almost surely, 2^8649610040 is an apocalyptic number.

It is an amenable number.

8649610040 is an abundant number, since it is smaller than the sum of its proper divisors (11141875960).

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

8649610040 is a wasteful number, since it uses less digits than its factorization.

8649610040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665159 (or 3665155 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 8649610040 is about 93003.2797271150. The cubic root of 8649610040 is about 2052.7316382514.

The spelling of 8649610040 in words is "eight billion, six hundred forty-nine million, six hundred ten thousand, forty".