8481706647 has 32 divisors (see below), whose sum is σ = 12488256000. Its totient is φ = 5099230080.

The previous prime is 8481706633. The next prime is 8481706669. The reversal of 8481706647 is 7466071848.

It is a happy number.

It is not a de Polignac number, because 8481706647 - 2¹⁰ = 8481705623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8481706647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8481706687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81229 + ... + 153497.

It is an arithmetic number, because the mean of its divisors is an integer number (390258000).

Almost surely, 2^8481706647 is an apocalyptic number.

8481706647 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

8481706647 is a deficient number, since it is larger than the sum of its proper divisors (4006549353).

8481706647 is a wasteful number, since it uses less digits than its factorization.

8481706647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72391.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 8481706647 is about 92096.1815006464. The cubic root of 8481706647 is about 2039.3624374892.

The spelling of 8481706647 in words is "eight billion, four hundred eighty-one million, seven hundred six thousand, six hundred forty-seven".