2076781784 has 32 divisors (see below), whose sum is σ = 4854816000. Its totient is φ = 809135520.

The previous prime is 2076781771. The next prime is 2076781789. The reversal of 2076781784 is 4871876702.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2076781789) 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 7 ways as a sum of consecutive naturals, for example, 1685084 + ... + 1686315.

It is an arithmetic number, because the mean of its divisors is an integer number (151713000).

Almost surely, 2^2076781784 is an apocalyptic number.

It is an amenable number.

2076781784 is an abundant number, since it is smaller than the sum of its proper divisors (2778034216).

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

2076781784 is a wasteful number, since it uses less digits than its factorization.

2076781784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371423 (or 3371419 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 50.

The square root of 2076781784 is about 45571.7213192567. The cubic root of 2076781784 is about 1275.8421777205.

The spelling of 2076781784 in words is "two billion, seventy-six million, seven hundred eighty-one thousand, seven hundred eighty-four".