2135993706 has 128 divisors (see below), whose sum is σ = 5974456320. Its totient is φ = 549504000.

The previous prime is 2135993689. The next prime is 2135993707. The reversal of 2135993706 is 6073995312.

2135993706 is a `hidden beast` number, since 21 + 3 + 599 + 37 + 0 + 6 = 666.

It is a super-2 number, since 2×2135993706² = 9124938224143228872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2135993707) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 442506 + ... + 447306.

It is an arithmetic number, because the mean of its divisors is an integer number (46675440).

Almost surely, 2^2135993706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135993706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2987228160).

2135993706 is an abundant number, since it is smaller than the sum of its proper divisors (3838462614).

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

2135993706 is a wasteful number, since it uses less digits than its factorization.

2135993706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937 (or 4931 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 2135993706 is about 46216.8119411108. The cubic root of 2135993706 is about 1287.8540741825.

The spelling of 2135993706 in words is "two billion, one hundred thirty-five million, nine hundred ninety-three thousand, seven hundred six".