2681657798 has 8 divisors (see below), whose sum is σ = 4028986920. Its totient is φ = 1338662160.

The previous prime is 2681657789. The next prime is 2681657857. The reversal of 2681657798 is 8977561862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 1081823 + ... + 1084298.

It is an arithmetic number, because the mean of its divisors is an integer number (503623365).

Almost surely, 2^2681657798 is an apocalyptic number.

2681657798 is a deficient number, since it is larger than the sum of its proper divisors (1347329122).

2681657798 is a wasteful number, since it uses less digits than its factorization.

2681657798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166742.

The product of its digits is 10160640, while the sum is 59.

The square root of 2681657798 is about 51784.7255279006. The cubic root of 2681657798 is about 1389.3162619005.

The spelling of 2681657798 in words is "two billion, six hundred eighty-one million, six hundred fifty-seven thousand, seven hundred ninety-eight".