2681385766 has 8 divisors (see below), whose sum is σ = 4044300624. Its totient is φ = 1333285560.

The previous prime is 2681385739. The next prime is 2681385829. The reversal of 2681385766 is 6675831862.

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

It is a super-2 number, since 2×2681385766² = 14379659252214813512, which contains 22 as substring.

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, 3703210 + ... + 3703933.

It is an arithmetic number, because the mean of its divisors is an integer number (505537578).

Almost surely, 2^2681385766 is an apocalyptic number.

2681385766 is a deficient number, since it is larger than the sum of its proper divisors (1362914858).

2681385766 is a wasteful number, since it uses less digits than its factorization.

2681385766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407326.

The product of its digits is 2903040, while the sum is 52.

The square root of 2681385766 is about 51782.0988952746. The cubic root of 2681385766 is about 1389.2692820979.

The spelling of 2681385766 in words is "two billion, six hundred eighty-one million, three hundred eighty-five thousand, seven hundred sixty-six".