2061857776 has 40 divisors (see below), whose sum is σ = 4508305200. Its totient is φ = 904888320.

The previous prime is 2061857741. The next prime is 2061857779. The reversal of 2061857776 is 6777581602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061857779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196881 + ... + 207088.

It is an arithmetic number, because the mean of its divisors is an integer number (112707630).

Almost surely, 2^2061857776 is an apocalyptic number.

It is an amenable number.

2061857776 is an abundant number, since it is smaller than the sum of its proper divisors (2446447424).

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

2061857776 is a wasteful number, since it uses less digits than its factorization.

2061857776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404017 (or 404011 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 2061857776 is about 45407.6841074283. The cubic root of 2061857776 is about 1272.7787084741.

The spelling of 2061857776 in words is "two billion, sixty-one million, eight hundred fifty-seven thousand, seven hundred seventy-six".