3185163648 has 480 divisors, whose sum is σ = 10721248560. Its totient is φ = 936105984.

The previous prime is 3185163647. The next prime is 3185163677. The reversal of 3185163648 is 8463615813.

3185163648 is a `hidden beast` number, since 3 + 1 + 8 + 5 + 1 + 636 + 4 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3185163647) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 86085486 + ... + 86085522.

Almost surely, 2^3185163648 is an apocalyptic number.

3185163648 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3185163648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5360624280).

3185163648 is an abundant number, since it is smaller than the sum of its proper divisors (7536084912).

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

3185163648 is a wasteful number, since it uses less digits than its factorization.

3185163648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 84 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 3185163648 is about 56437.2540791984. The cubic root of 3185163648 is about 1471.3316712438.

The spelling of 3185163648 in words is "three billion, one hundred eighty-five million, one hundred sixty-three thousand, six hundred forty-eight".