8641886490 has 64 divisors (see below), whose sum is σ = 23061024000. Its totient is φ = 2302903872.

The previous prime is 8641886467. The next prime is 8641886507. The reversal of 8641886490 is 946881468.

8641886490 is a `hidden beast` number, since 8 + 64 + 18 + 86 + 490 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407899 + ... + 428561.

It is an arithmetic number, because the mean of its divisors is an integer number (360328500).

Almost surely, 2^8641886490 is an apocalyptic number.

8641886490 is an abundant number, since it is smaller than the sum of its proper divisors (14419137510).

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

8641886490 is a wasteful number, since it uses less digits than its factorization.

8641886490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22228 (or 22222 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The square root of 8641886490 is about 92961.7474556067. The cubic root of 8641886490 is about 2052.1204701681.

The spelling of 8641886490 in words is "eight billion, six hundred forty-one million, eight hundred eighty-six thousand, four hundred ninety".