6471123648 has 112 divisors (see below), whose sum is σ = 18723985920. Its totient is φ = 1956121600.

The previous prime is 6471123643. The next prime is 6471123751. The reversal of 6471123648 is 8463211746.

It is a super-4 number, since 4×6471123648⁴ (a number of 40 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (6471123641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906718 + ... + 913826.

Almost surely, 2^6471123648 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 6471123648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9361992960).

6471123648 is an abundant number, since it is smaller than the sum of its proper divisors (12252862272).

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

6471123648 is a wasteful number, since it uses less digits than its factorization.

6471123648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566 (or 7556 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 6471123648 is about 80443.2946117947. The cubic root of 6471123648 is about 1863.4878525673.

The spelling of 6471123648 in words is "six billion, four hundred seventy-one million, one hundred twenty-three thousand, six hundred forty-eight".