1426271681 has 8 divisors (see below), whose sum is σ = 1442901504. Its totient is φ = 1409737680.

The previous prime is 1426271659. The next prime is 1426271713. The reversal of 1426271681 is 1861726241.

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

It is a cyclic number.

It is not a de Polignac number, because 1426271681 - 2⁶ = 1426271617 is a prime.

It is a super-2 number, since 2×1426271681² = 4068501816045131522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1426271611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6206 + ... + 53768.

It is an arithmetic number, because the mean of its divisors is an integer number (180362688).

Almost surely, 2^1426271681 is an apocalyptic number.

It is an amenable number.

1426271681 is a deficient number, since it is larger than the sum of its proper divisors (16629823).

1426271681 is a wasteful number, since it uses less digits than its factorization.

1426271681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47911.

The product of its digits is 32256, while the sum is 38.

The square root of 1426271681 is about 37766.0122464631. The cubic root of 1426271681 is about 1125.6432024927.

The spelling of 1426271681 in words is "one billion, four hundred twenty-six million, two hundred seventy-one thousand, six hundred eighty-one".