1642430960293 has 2 divisors, whose sum is σ = 1642430960294. Its totient is φ = 1642430960292.

The previous prime is 1642430960207. The next prime is 1642430960363. The reversal of 1642430960293 is 3920690342461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1358919438529 + 283511521764 = 1165727^2 + 532458^2 .

It is an emirp because it is prime and its reverse (3920690342461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1642430960293 - 2⁹ = 1642430959781 is a prime.

It is a super-2 number, since 2×1642430960293² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1642430963293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821215480146 + 821215480147.

It is an arithmetic number, because the mean of its divisors is an integer number (821215480147).

Almost surely, 2^{1642430960293} is an apocalyptic number.

It is an amenable number.

1642430960293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642430960293 is an equidigital number, since it uses as much as digits as its factorization.

1642430960293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 1642430960293 in words is "one trillion, six hundred forty-two billion, four hundred thirty million, nine hundred sixty thousand, two hundred ninety-three".