8662493840 has 480 divisors, whose sum is σ = 27879572736. Its totient is φ = 2429706240.

The previous prime is 8662493839. The next prime is 8662493867. The reversal of 8662493840 is 483942668.

It is a happy number.

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 95 ways as a sum of consecutive naturals, for example, 55175042 + ... + 55175198.

Almost surely, 2^8662493840 is an apocalyptic number.

8662493840 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 8662493840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13939786368).

8662493840 is an abundant number, since it is smaller than the sum of its proper divisors (19217078896).

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

8662493840 is a wasteful number, since it uses less digits than its factorization.

8662493840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The square root of 8662493840 is about 93072.5192524625. The cubic root of 8662493840 is about 2053.7503301723.

The spelling of 8662493840 in words is "eight billion, six hundred sixty-two million, four hundred ninety-three thousand, eight hundred forty".