2681634853 has 2 divisors, whose sum is σ = 2681634854. Its totient is φ = 2681634852.

The previous prime is 2681634811. The next prime is 2681634911. The reversal of 2681634853 is 3584361862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1927473409 + 754161444 = 43903^2 + 27462^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681634853 - 2²¹ = 2679537701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681634803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340817426 + 1340817427.

It is an arithmetic number, because the mean of its divisors is an integer number (1340817427).

Almost surely, 2^2681634853 is an apocalyptic number.

It is an amenable number.

2681634853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681634853 is an equidigital number, since it uses as much as digits as its factorization.

2681634853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 46.

The square root of 2681634853 is about 51784.5039852657. The cubic root of 2681634853 is about 1389.3122994321.

The spelling of 2681634853 in words is "two billion, six hundred eighty-one million, six hundred thirty-four thousand, eight hundred fifty-three".