2315021648 has 40 divisors (see below), whose sum is σ = 4783443840. Its totient is φ = 1081566720.

The previous prime is 2315021647. The next prime is 2315021671. The reversal of 2315021648 is 8461205132.

2315021648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315021647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7193 + ... + 68423.

It is an arithmetic number, because the mean of its divisors is an integer number (119586096).

Almost surely, 2^2315021648 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 2315021648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2391721920).

2315021648 is an abundant number, since it is smaller than the sum of its proper divisors (2468422192).

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

2315021648 is a wasteful number, since it uses less digits than its factorization.

2315021648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61395 (or 61389 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2315021648 is about 48114.6718579686. The cubic root of 2315021648 is about 1322.8736080660.

The spelling of 2315021648 in words is "two billion, three hundred fifteen million, twenty-one thousand, six hundred forty-eight".