2681353890946 has 8 divisors (see below), whose sum is σ = 4063495072140. Its totient is φ = 1326855533568.

The previous prime is 2681353890863. The next prime is 2681353890959. The reversal of 2681353890946 is 6490983531862.

It can be written as a sum of positive squares in 2 ways, for example, as 2290497606721 + 390856284225 = 1513439^2 + 625185^2 .

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

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, 6910705711 + ... + 6910706098.

Almost surely, 2^{2681353890946} is an apocalyptic number.

2681353890946 is a deficient number, since it is larger than the sum of its proper divisors (1382141181194).

2681353890946 is a wasteful number, since it uses less digits than its factorization.

2681353890946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13821411908.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 2681353890946 in words is "two trillion, six hundred eighty-one billion, three hundred fifty-three million, eight hundred ninety thousand, nine hundred forty-six".