2061648388 has 24 divisors (see below), whose sum is σ = 3658826808. Its totient is φ = 1016365056.

The previous prime is 2061648359. The next prime is 2061648389. The reversal of 2061648388 is 8838461602.

It can be written as a sum of positive squares in 4 ways, for example, as 61591104 + 2000057284 = 7848^2 + 44722^2 .

It is not an unprimeable number, because it can be changed into a prime (2061648389) 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, 75420 + ... + 99052.

It is an arithmetic number, because the mean of its divisors is an integer number (152451117).

Almost surely, 2^2061648388 is an apocalyptic number.

It is an amenable number.

2061648388 is a deficient number, since it is larger than the sum of its proper divisors (1597178420).

2061648388 is a wasteful number, since it uses less digits than its factorization.

2061648388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23943 (or 23941 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 2061648388 is about 45405.3784038852. The cubic root of 2061648388 is about 1272.7356221512.

The spelling of 2061648388 in words is "two billion, sixty-one million, six hundred forty-eight thousand, three hundred eighty-eight".