8716431840 has 48 divisors (see below), whose sum is σ = 27456761808. Its totient is φ = 2324381696.

The previous prime is 8716431821. The next prime is 8716431869. The reversal of 8716431840 is 481346178.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8716431792 and 8716431801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9079137 + ... + 9080096.

It is an arithmetic number, because the mean of its divisors is an integer number (572015871).

Almost surely, 2^8716431840 is an apocalyptic number.

8716431840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8716431840 is an abundant number, since it is smaller than the sum of its proper divisors (18740329968).

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

8716431840 is a wasteful number, since it uses less digits than its factorization.

8716431840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18159251 (or 18159243 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 8716431840 is about 93361.8328868923. The cubic root of 8716431840 is about 2058.0041498120.

The spelling of 8716431840 in words is "eight billion, seven hundred sixteen million, four hundred thirty-one thousand, eight hundred forty".