8645392620 has 144 divisors (see below), whose sum is σ = 27043275168. Its totient is φ = 2233958400.

The previous prime is 8645392607. The next prime is 8645392621. The reversal of 8645392620 is 262935468.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (8645392621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1709095 + ... + 1714145.

It is an arithmetic number, because the mean of its divisors is an integer number (187800522).

Almost surely, 2^8645392620 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 8645392620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13521637584).

8645392620 is an abundant number, since it is smaller than the sum of its proper divisors (18397882548).

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

8645392620 is a wasteful number, since it uses less digits than its factorization.

8645392620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360 (or 5355 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 8645392620 is about 92980.6034611520. The cubic root of 8645392620 is about 2052.3979569697.

It can be divided in two parts, 8 and 645392620, that added together give a triangular number (645392628 = T₃₅₉₂₇).

The spelling of 8645392620 in words is "eight billion, six hundred forty-five million, three hundred ninety-two thousand, six hundred twenty".