8719403616 has 144 divisors (see below), whose sum is σ = 30914327808. Its totient is φ = 2264774400.

The previous prime is 8719403611. The next prime is 8719403617. The reversal of 8719403616 is 6163049178.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8719403611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174420 + ... + 218771.

It is an arithmetic number, because the mean of its divisors is an integer number (214682832).

Almost surely, 2^8719403616 is an apocalyptic number.

It is an amenable number.

8719403616 is an abundant number, since it is smaller than the sum of its proper divisors (22194924192).

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

8719403616 is a wasteful number, since it uses less digits than its factorization.

8719403616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393225 (or 393214 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 8719403616 is about 93377.7468993550. The cubic root of 8719403616 is about 2058.2380082123.

The spelling of 8719403616 in words is "eight billion, seven hundred nineteen million, four hundred three thousand, six hundred sixteen".