8368496640 has 896 divisors, whose sum is σ = 36236574720. Its totient is φ = 1790705664.

The previous prime is 8368496603. The next prime is 8368496651. The reversal of 8368496640 is 466948638.

It is a tau number, because it is divible by the number of its divisors (896).

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178053097 + ... + 178053143.

Almost surely, 2^8368496640 is an apocalyptic number.

8368496640 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 8368496640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18118287360).

8368496640 is an abundant number, since it is smaller than the sum of its proper divisors (27868078080).

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

8368496640 is a wasteful number, since it uses less digits than its factorization.

8368496640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The square root of 8368496640 is about 91479.4875368243. The cubic root of 8368496640 is about 2030.2482681465.

The spelling of 8368496640 in words is "eight billion, three hundred sixty-eight million, four hundred ninety-six thousand, six hundred forty".