8545420506 has 192 divisors, whose sum is σ = 22220513280. Its totient is φ = 2137829760.

The previous prime is 8545420417. The next prime is 8545420523. The reversal of 8545420506 is 6050245458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13086076 + ... + 13086728.

It is an arithmetic number, because the mean of its divisors is an integer number (115731840).

Almost surely, 2^8545420506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8545420506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11110256640).

8545420506 is an abundant number, since it is smaller than the sum of its proper divisors (13675092774).

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

8545420506 is a wasteful number, since it uses less digits than its factorization.

8545420506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 8545420506 is about 92441.4436602977. The cubic root of 8545420506 is about 2044.4562097703.

The spelling of 8545420506 in words is "eight billion, five hundred forty-five million, four hundred twenty thousand, five hundred six".