19340355335429 has 2 divisors, whose sum is σ = 19340355335430. Its totient is φ = 19340355335428.

The previous prime is 19340355335393. The next prime is 19340355335473. The reversal of 19340355335429 is 92453355304391.

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., 10309140316225 + 9031215019204 = 3210785^2 + 3005198^2 .

It is an emirp because it is prime and its reverse (92453355304391) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19340355335429 is a prime.

It is a super-2 number, since 2×19340355335429² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19340355335479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9670177667714 + 9670177667715.

It is an arithmetic number, because the mean of its divisors is an integer number (9670177667715).

Almost surely, 2^{19340355335429} is an apocalyptic number.

It is an amenable number.

19340355335429 is a deficient number, since it is larger than the sum of its proper divisors (1).

19340355335429 is an equidigital number, since it uses as much as digits as its factorization.

19340355335429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244000, while the sum is 56.

The spelling of 19340355335429 in words is "nineteen trillion, three hundred forty billion, three hundred fifty-five million, three hundred thirty-five thousand, four hundred twenty-nine".