2136719412 has 84 divisors (see below), whose sum is σ = 5850260640. Its totient is φ = 681251472.

The previous prime is 2136719383. The next prime is 2136719419. The reversal of 2136719412 is 2149176312.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136719419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 51139 + ... + 82997.

It is an arithmetic number, because the mean of its divisors is an integer number (69645960).

Almost surely, 2^2136719412 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 2136719412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2925130320).

2136719412 is an abundant number, since it is smaller than the sum of its proper divisors (3713541228).

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

2136719412 is a wasteful number, since it uses less digits than its factorization.

2136719412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31904 (or 31887 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2136719412 is about 46224.6623784317. The cubic root of 2136719412 is about 1287.9999075717. Note that the first 4 decimals are identical.

The spelling of 2136719412 in words is "two billion, one hundred thirty-six million, seven hundred nineteen thousand, four hundred twelve".