2681126447 has 2 divisors, whose sum is σ = 2681126448. Its totient is φ = 2681126446.

The previous prime is 2681126443. The next prime is 2681126621. The reversal of 2681126447 is 7446211862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2681126447 - 2² = 2681126443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681126443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340563223 + 1340563224.

It is an arithmetic number, because the mean of its divisors is an integer number (1340563224).

Almost surely, 2^2681126447 is an apocalyptic number.

2681126447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681126447 is an equidigital number, since it uses as much as digits as its factorization.

2681126447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 2681126447 is about 51779.5948902654. The cubic root of 2681126447 is about 1389.2244948664.

The spelling of 2681126447 in words is "two billion, six hundred eighty-one million, one hundred twenty-six thousand, four hundred forty-seven".