8641896450 has 192 divisors, whose sum is σ = 25226992512. Its totient is φ = 1934233600.

The previous prime is 8641896449. The next prime is 8641896479. The reversal of 8641896450 is 546981468.

It is a super-3 number, since 3×8641896450³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8641896393 and 8641896402.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1483744 + ... + 1489556.

It is an arithmetic number, because the mean of its divisors is an integer number (131390586).

Almost surely, 2^8641896450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8641896450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12613496256).

8641896450 is an abundant number, since it is smaller than the sum of its proper divisors (16585096062).

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

8641896450 is a wasteful number, since it uses less digits than its factorization.

8641896450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909 (or 5904 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 8641896450 is about 92961.8010260128. The cubic root of 8641896450 is about 2052.1212585419.

The spelling of 8641896450 in words is "eight billion, six hundred forty-one million, eight hundred ninety-six thousand, four hundred fifty".