2813773640 has 16 divisors (see below), whose sum is σ = 6330990780. Its totient is φ = 1125509440.

The previous prime is 2813773619. The next prime is 2813773679. The reversal of 2813773640 is 463773182.

It can be written as a sum of positive squares in 2 ways, for example, as 2664004996 + 149768644 = 51614^2 + 12238^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35172131 + ... + 35172210.

Almost surely, 2^2813773640 is an apocalyptic number.

2813773640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2813773640 is an abundant number, since it is smaller than the sum of its proper divisors (3517217140).

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

2813773640 is a wasteful number, since it uses less digits than its factorization.

2813773640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70344352 (or 70344348 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 2813773640 is about 53045.0152229217. The cubic root of 2813773640 is about 1411.7670851444.

The spelling of 2813773640 in words is "two billion, eight hundred thirteen million, seven hundred seventy-three thousand, six hundred forty".