1426710042721 has 4 divisors (see below), whose sum is σ = 1426712515632. Its totient is φ = 1426707569812.

The previous prime is 1426710042713. The next prime is 1426710042733. The reversal of 1426710042721 is 1272400176241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1426710042721 - 2³ = 1426710042713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1426710042701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138906 + ... + 1694908.

It is an arithmetic number, because the mean of its divisors is an integer number (356678128908).

Almost surely, 2^{1426710042721} is an apocalyptic number.

It is an amenable number.

1426710042721 is a deficient number, since it is larger than the sum of its proper divisors (2472911).

1426710042721 is an equidigital number, since it uses as much as digits as its factorization.

1426710042721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472910.

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 1426710042721 in words is "one trillion, four hundred twenty-six billion, seven hundred ten million, forty-two thousand, seven hundred twenty-one".