1443400632397 has 2 divisors, whose sum is σ = 1443400632398. Its totient is φ = 1443400632396.

The previous prime is 1443400632383. The next prime is 1443400632431. The reversal of 1443400632397 is 7932360043441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1442643612201 + 757020196 = 1201101^2 + 27514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443400632397 - 2³¹ = 1441253148749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1443400638397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721700316198 + 721700316199.

It is an arithmetic number, because the mean of its divisors is an integer number (721700316199).

Almost surely, 2^{1443400632397} is an apocalyptic number.

It is an amenable number.

1443400632397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443400632397 is an equidigital number, since it uses as much as digits as its factorization.

1443400632397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 1443400632397 in words is "one trillion, four hundred forty-three billion, four hundred million, six hundred thirty-two thousand, three hundred ninety-seven".