1401573643579 has 2 divisors, whose sum is σ = 1401573643580. Its totient is φ = 1401573643578.

The previous prime is 1401573643573. The next prime is 1401573643621. The reversal of 1401573643579 is 9753463751041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401573643579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401573643573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700786821789 + 700786821790.

It is an arithmetic number, because the mean of its divisors is an integer number (700786821790).

Almost surely, 2^{1401573643579} is an apocalyptic number.

1401573643579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401573643579 is an equidigital number, since it uses as much as digits as its factorization.

1401573643579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 1401573643579 in words is "one trillion, four hundred one billion, five hundred seventy-three million, six hundred forty-three thousand, five hundred seventy-nine".