1642430963293 has 2 divisors, whose sum is σ = 1642430963294. Its totient is φ = 1642430963292.

The previous prime is 1642430963273. The next prime is 1642430963317. The reversal of 1642430963293 is 3923690342461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117614751929 + 524816211364 = 1057173^2 + 724442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1642430963293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1642430963293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1642430963273) 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, 821215481646 + 821215481647.

It is an arithmetic number, because the mean of its divisors is an integer number (821215481647).

Almost surely, 2^{1642430963293} is an apocalyptic number.

It is an amenable number.

1642430963293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642430963293 is an equidigital number, since it uses as much as digits as its factorization.

1642430963293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 52.

The spelling of 1642430963293 in words is "one trillion, six hundred forty-two billion, four hundred thirty million, nine hundred sixty-three thousand, two hundred ninety-three".