1402424400989 has 2 divisors, whose sum is σ = 1402424400990. Its totient is φ = 1402424400988.

The previous prime is 1402424400943. The next prime is 1402424401031. The reversal of 1402424400989 is 9890044242041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1332773273764 + 69651127225 = 1154458^2 + 263915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402424400989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402424400589) 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, 701212200494 + 701212200495.

It is an arithmetic number, because the mean of its divisors is an integer number (701212200495).

Almost surely, 2^{1402424400989} is an apocalyptic number.

It is an amenable number.

1402424400989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402424400989 is an equidigital number, since it uses as much as digits as its factorization.

1402424400989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 1402424400989 in words is "one trillion, four hundred two billion, four hundred twenty-four million, four hundred thousand, nine hundred eighty-nine".