20344513056619 has 2 divisors, whose sum is σ = 20344513056620. Its totient is φ = 20344513056618.

The previous prime is 20344513056583. The next prime is 20344513056631. The reversal of 20344513056619 is 91665031544302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20344513056619 - 2⁹ = 20344513056107 is a prime.

It is a super-2 number, since 2×20344513056619² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20344513056719) 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, 10172256528309 + 10172256528310.

It is an arithmetic number, because the mean of its divisors is an integer number (10172256528310).

Almost surely, 2^{20344513056619} is an apocalyptic number.

20344513056619 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344513056619 is an equidigital number, since it uses as much as digits as its factorization.

20344513056619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 20344513056619 in words is "twenty trillion, three hundred forty-four billion, five hundred thirteen million, fifty-six thousand, six hundred nineteen".