8613834840 has 448 divisors, whose sum is σ = 32347203840. Its totient is φ = 2049131520.

The previous prime is 8613834799. The next prime is 8613834877. The reversal of 8613834840 is 484383168.

8613834840 is a `hidden beast` number, since 86 + 13 + 83 + 484 + 0 = 666.

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

It is a congruent number.

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, 11751114 + ... + 11751846.

It is an arithmetic number, because the mean of its divisors is an integer number (72203580).

Almost surely, 2^8613834840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8613834840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16173601920).

8613834840 is an abundant number, since it is smaller than the sum of its proper divisors (23733369000).

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

8613834840 is a wasteful number, since it uses less digits than its factorization.

8613834840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 8613834840 is about 92810.7474379988. The cubic root of 8613834840 is about 2049.8976621528.

The spelling of 8613834840 in words is "eight billion, six hundred thirteen million, eight hundred thirty-four thousand, eight hundred forty".