8718373440 has 784 divisors, whose sum is σ = 37578913920. Its totient is φ = 1881169920.

The previous prime is 8718373409. The next prime is 8718373451. The reversal of 8718373440 is 443738178.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 31026100 + ... + 31026380.

Almost surely, 2^8718373440 is an apocalyptic number.

8718373440 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 8718373440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18789456960).

8718373440 is an abundant number, since it is smaller than the sum of its proper divisors (28860540480).

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

8718373440 is a wasteful number, since it uses less digits than its factorization.

8718373440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 8718373440 is about 93372.2305613398. The cubic root of 8718373440 is about 2058.1569464409.

The spelling of 8718373440 in words is "eight billion, seven hundred eighteen million, three hundred seventy-three thousand, four hundred forty".