2076781020 has 48 divisors (see below), whose sum is σ = 5837656608. Its totient is φ = 551649280.

The previous prime is 2076781001. The next prime is 2076781037. The reversal of 2076781020 is 201876702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51921 + ... + 82760.

It is an arithmetic number, because the mean of its divisors is an integer number (121617846).

Almost surely, 2^2076781020 is an apocalyptic number.

2076781020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2076781020 is an abundant number, since it is smaller than the sum of its proper divisors (3760875588).

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

2076781020 is a wasteful number, since it uses less digits than its factorization.

2076781020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134950 (or 134948 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 2076781020 is about 45571.7129368647. The cubic root of 2076781020 is about 1275.8420212695.

The spelling of 2076781020 in words is "two billion, seventy-six million, seven hundred eighty-one thousand, twenty".