19790795343919 has 2 divisors, whose sum is σ = 19790795343920. Its totient is φ = 19790795343918.

The previous prime is 19790795343889. The next prime is 19790795343937. The reversal of 19790795343919 is 91934359709791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19790795343919 - 2³¹ = 19788647860271 is a prime.

It is a super-2 number, since 2×19790795343919² (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 (19790795340919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9895397671959 + 9895397671960.

It is an arithmetic number, because the mean of its divisors is an integer number (9895397671960).

Almost surely, 2^{19790795343919} is an apocalyptic number.

19790795343919 is a deficient number, since it is larger than the sum of its proper divisors (1).

19790795343919 is an equidigital number, since it uses as much as digits as its factorization.

19790795343919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 520812180, while the sum is 76.

The spelling of 19790795343919 in words is "nineteen trillion, seven hundred ninety billion, seven hundred ninety-five million, three hundred forty-three thousand, nine hundred nineteen".