1402443809279 has 2 divisors, whose sum is σ = 1402443809280. Its totient is φ = 1402443809278.

The previous prime is 1402443809189. The next prime is 1402443809293. The reversal of 1402443809279 is 9729083442041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1402443809279 - 2²⁰ = 1402442760703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1402443809279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402443809779) 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, 701221904639 + 701221904640.

It is an arithmetic number, because the mean of its divisors is an integer number (701221904640).

Almost surely, 2^{1402443809279} is an apocalyptic number.

1402443809279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402443809279 is an equidigital number, since it uses as much as digits as its factorization.

1402443809279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 1402443809279 in words is "one trillion, four hundred two billion, four hundred forty-three million, eight hundred nine thousand, two hundred seventy-nine".