2051976136 has 96 divisors (see below), whose sum is σ = 4747917600. Its totient is φ = 826640640.

The previous prime is 2051976131. The next prime is 2051976169. The reversal of 2051976136 is 6316791502.

It is not an unprimeable number, because it can be changed into a prime (2051976131) 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 23 ways as a sum of consecutive naturals, for example, 1019371 + ... + 1021381.

It is an arithmetic number, because the mean of its divisors is an integer number (49457475).

Almost surely, 2^2051976136 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 2051976136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2373958800).

2051976136 is an abundant number, since it is smaller than the sum of its proper divisors (2695941464).

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

2051976136 is a wasteful number, since it uses less digits than its factorization.

2051976136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187 (or 2176 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 2051976136 is about 45298.7432055239. The cubic root of 2051976136 is about 1270.7421491514.

The spelling of 2051976136 in words is "two billion, fifty-one million, nine hundred seventy-six thousand, one hundred thirty-six".