7426420281643 has 16 divisors (see below), whose sum is σ = 8120756362752. Its totient is φ = 6735288820000.

The previous prime is 7426420281629. The next prime is 7426420281647. The reversal of 7426420281643 is 3461820246247.

It is a cyclic number.

It is not a de Polignac number, because 7426420281643 - 2⁹ = 7426420281131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7426420281647) 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 in 15 ways as a sum of consecutive naturals, for example, 45437118 + ... + 45600268.

It is an arithmetic number, because the mean of its divisors is an integer number (507547272672).

Almost surely, 2^{7426420281643} is an apocalyptic number.

7426420281643 is a deficient number, since it is larger than the sum of its proper divisors (694336081109).

7426420281643 is a wasteful number, since it uses less digits than its factorization.

7426420281643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172946.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 7426420281643 in words is "seven trillion, four hundred twenty-six billion, four hundred twenty million, two hundred eighty-one thousand, six hundred forty-three".