8436489516 has 576 divisors, whose sum is σ = 29587783680. Its totient is φ = 1963906560.

The previous prime is 8436489461. The next prime is 8436489521. The reversal of 8436489516 is 6159846348.

8436489516 is a `hidden beast` number, since 8 + 43 + 6 + 4 + 89 + 516 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 101644411 + ... + 101644493.

It is an arithmetic number, because the mean of its divisors is an integer number (51367680).

Almost surely, 2^8436489516 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 8436489516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14793891840).

8436489516 is an abundant number, since it is smaller than the sum of its proper divisors (21151294164).

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

8436489516 is a wasteful number, since it uses less digits than its factorization.

8436489516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 8436489516 is about 91850.3648114693. The cubic root of 8436489516 is about 2035.7319388143.

The spelling of 8436489516 in words is "eight billion, four hundred thirty-six million, four hundred eighty-nine thousand, five hundred sixteen".