20136537335419 has 2 divisors, whose sum is σ = 20136537335420. Its totient is φ = 20136537335418.

The previous prime is 20136537335399. The next prime is 20136537335449. The reversal of 20136537335419 is 91453373563102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20136537335419 is a prime.

It is a super-2 number, since 2×20136537335419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20136537335449) 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, 10068268667709 + 10068268667710.

It is an arithmetic number, because the mean of its divisors is an integer number (10068268667710).

Almost surely, 2^{20136537335419} is an apocalyptic number.

20136537335419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20136537335419 is an equidigital number, since it uses as much as digits as its factorization.

20136537335419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 52.

The spelling of 20136537335419 in words is "twenty trillion, one hundred thirty-six billion, five hundred thirty-seven million, three hundred thirty-five thousand, four hundred nineteen".