2681078436 has 36 divisors (see below), whose sum is σ = 6793777900. Its totient is φ = 891502848.

The previous prime is 2681078417. The next prime is 2681078443. The reversal of 2681078436 is 6348701862.

It can be written as a sum of positive squares in 2 ways, for example, as 2181824100 + 499254336 = 46710^2 + 22344^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 2681078391 and 2681078400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76321 + ... + 105768.

Almost surely, 2^2681078436 is an apocalyptic number.

It is an amenable number.

2681078436 is an abundant number, since it is smaller than the sum of its proper divisors (4112699464).

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

2681078436 is a wasteful number, since it uses less digits than its factorization.

2681078436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182508 (or 182503 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2681078436 is about 51779.1312789236. The cubic root of 2681078436 is about 1389.2162025240.

The spelling of 2681078436 in words is "two billion, six hundred eighty-one million, seventy-eight thousand, four hundred thirty-six".