2135706648 has 32 divisors (see below), whose sum is σ = 5391110400. Its totient is φ = 704989728.

The previous prime is 2135706641. The next prime is 2135706701. The reversal of 2135706648 is 8466075312.

It is a super-2 number, since 2×2135706648² = 9122485772622791808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135706641) 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, 429508 + ... + 434451.

It is an arithmetic number, because the mean of its divisors is an integer number (168472200).

Almost surely, 2^2135706648 is an apocalyptic number.

It is an amenable number.

2135706648 is an abundant number, since it is smaller than the sum of its proper divisors (3255403752).

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

2135706648 is a wasteful number, since it uses less digits than its factorization.

2135706648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864071 (or 864067 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2135706648 is about 46213.7062785490. The cubic root of 2135706648 is about 1287.7963796653.

The spelling of 2135706648 in words is "two billion, one hundred thirty-five million, seven hundred six thousand, six hundred forty-eight".