8465423064 has 72 divisors (see below), whose sum is σ = 24628011660. Its totient is φ = 2417790816.

The previous prime is 8465423063. The next prime is 8465423069. The reversal of 8465423064 is 4603245648.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8465423063) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3153867 + ... + 3156549.

Almost surely, 2^8465423064 is an apocalyptic number.

8465423064 is a gapful number since it is divisible by the number (84) 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 8465423064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12314005830).

8465423064 is an abundant number, since it is smaller than the sum of its proper divisors (16162588596).

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

8465423064 is an equidigital number, since it uses as much as digits as its factorization.

8465423064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 8465423064 is about 92007.7337184217. The cubic root of 8465423064 is about 2038.0565131389.

The spelling of 8465423064 in words is "eight billion, four hundred sixty-five million, four hundred twenty-three thousand, sixty-four".