2050721871 has 32 divisors (see below), whose sum is σ = 3009816576. Its totient is φ = 1231692000.

The previous prime is 2050721857. The next prime is 2050721879. The reversal of 2050721871 is 1781270502.

It is not a de Polignac number, because 2050721871 - 2⁵ = 2050721839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050721879) 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 31 ways as a sum of consecutive naturals, for example, 2165020 + ... + 2165966.

It is an arithmetic number, because the mean of its divisors is an integer number (94056768).

Almost surely, 2^2050721871 is an apocalyptic number.

2050721871 is a deficient number, since it is larger than the sum of its proper divisors (959094705).

2050721871 is a wasteful number, since it uses less digits than its factorization.

2050721871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 2050721871 is about 45284.8967206507. The cubic root of 2050721871 is about 1270.4831837848.

The spelling of 2050721871 in words is "two billion, fifty million, seven hundred twenty-one thousand, eight hundred seventy-one".