8420510718 has 72 divisors (see below), whose sum is σ = 19005352704. Its totient is φ = 2694202560.

The previous prime is 8420510711. The next prime is 8420510759. The reversal of 8420510718 is 8170150248.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420510711) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2194930 + ... + 2198762.

It is an arithmetic number, because the mean of its divisors is an integer number (263963232).

Almost surely, 2^8420510718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8420510718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9502676352).

8420510718 is an abundant number, since it is smaller than the sum of its proper divisors (10584841986).

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

8420510718 is a wasteful number, since it uses less digits than its factorization.

8420510718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 3996 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 8420510718 is about 91763.3408175618. The cubic root of 8420510718 is about 2034.4458941281.

The spelling of 8420510718 in words is "eight billion, four hundred twenty million, five hundred ten thousand, seven hundred eighteen".