2135783860 has 48 divisors (see below), whose sum is σ = 5129421696. Its totient is φ = 731763072.

The previous prime is 2135783833. The next prime is 2135783869. The reversal of 2135783860 is 683875312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135783869) 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, 238219 + ... + 247021.

It is an arithmetic number, because the mean of its divisors is an integer number (106862952).

Almost surely, 2^2135783860 is an apocalyptic number.

2135783860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135783860 is an abundant number, since it is smaller than the sum of its proper divisors (2993637836).

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

2135783860 is a wasteful number, since it uses less digits than its factorization.

2135783860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10552 (or 10550 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2135783860 is about 46214.5416508700. The cubic root of 2135783860 is about 1287.8118986717.

The spelling of 2135783860 in words is "two billion, one hundred thirty-five million, seven hundred eighty-three thousand, eight hundred sixty".