2681378276 has 12 divisors (see below), whose sum is σ = 4699110780. Its totient is φ = 1338775200.

The previous prime is 2681378239. The next prime is 2681378321. The reversal of 2681378276 is 6728731862.

It can be written as a sum of positive squares in 2 ways, for example, as 2340237376 + 341140900 = 48376^2 + 18470^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475331 + ... + 480938.

It is an arithmetic number, because the mean of its divisors is an integer number (391592565).

Almost surely, 2^2681378276 is an apocalyptic number.

It is an amenable number.

2681378276 is a deficient number, since it is larger than the sum of its proper divisors (2017732504).

2681378276 is a wasteful number, since it uses less digits than its factorization.

2681378276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956974 (or 956972 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 2681378276 is about 51782.0265729336. The cubic root of 2681378276 is about 1389.2679885334.

The spelling of 2681378276 in words is "two billion, six hundred eighty-one million, three hundred seventy-eight thousand, two hundred seventy-six".