1426642620493 has 2 divisors, whose sum is σ = 1426642620494. Its totient is φ = 1426642620492.

The previous prime is 1426642620479. The next prime is 1426642620497. The reversal of 1426642620493 is 3940262466241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1286405103204 + 140237517289 = 1134198^2 + 374483^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426642620493 - 2⁹ = 1426642619981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1426642620497) by changing a digit.

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 as a sum of consecutive naturals, namely, 713321310246 + 713321310247.

It is an arithmetic number, because the mean of its divisors is an integer number (713321310247).

Almost surely, 2^{1426642620493} is an apocalyptic number.

It is an amenable number.

1426642620493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426642620493 is an equidigital number, since it uses as much as digits as its factorization.

1426642620493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 49.

The spelling of 1426642620493 in words is "one trillion, four hundred twenty-six billion, six hundred forty-two million, six hundred twenty thousand, four hundred ninety-three".