20519676701353 has 2 divisors, whose sum is σ = 20519676701354. Its totient is φ = 20519676701352.

The previous prime is 20519676701351. The next prime is 20519676701431. The reversal of 20519676701353 is 35310767691502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20114121705129 + 405554996224 = 4484877^2 + 636832^2 .

It is a cyclic number.

It is not a de Polignac number, because 20519676701353 - 2¹ = 20519676701351 is a prime.

Together with 20519676701351, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20519676701294 and 20519676701303.

It is not a weakly prime, because it can be changed into another prime (20519676701351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10259838350676 + 10259838350677.

It is an arithmetic number, because the mean of its divisors is an integer number (10259838350677).

Almost surely, 2^{20519676701353} is an apocalyptic number.

It is an amenable number.

20519676701353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20519676701353 is an equidigital number, since it uses as much as digits as its factorization.

20519676701353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7144200, while the sum is 55.

The spelling of 20519676701353 in words is "twenty trillion, five hundred nineteen billion, six hundred seventy-six million, seven hundred one thousand, three hundred fifty-three".