1000401522389 has 2 divisors, whose sum is σ = 1000401522390. Its totient is φ = 1000401522388.

The previous prime is 1000401522359. The next prime is 1000401522403. The reversal of 1000401522389 is 9832251040001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831439419889 + 168962102500 = 911833^2 + 411050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000401522389 - 2¹² = 1000401518293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000401522359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500200761194 + 500200761195.

It is an arithmetic number, because the mean of its divisors is an integer number (500200761195).

Almost surely, 2^{1000401522389} is an apocalyptic number.

It is an amenable number.

1000401522389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000401522389 is an equidigital number, since it uses as much as digits as its factorization.

1000401522389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 1000401522389 in words is "one trillion, four hundred one million, five hundred twenty-two thousand, three hundred eighty-nine".