20417331762427 has 2 divisors, whose sum is σ = 20417331762428. Its totient is φ = 20417331762426.

The previous prime is 20417331762403. The next prime is 20417331762437. The reversal of 20417331762427 is 72426713371402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20417331762427 - 2²³ = 20417323373819 is a prime.

It is not a weakly prime, because it can be changed into another prime (20417331762437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10208665881213 + 10208665881214.

It is an arithmetic number, because the mean of its divisors is an integer number (10208665881214).

Almost surely, 2^{20417331762427} is an apocalyptic number.

20417331762427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20417331762427 is an equidigital number, since it uses as much as digits as its factorization.

20417331762427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 49.

The spelling of 20417331762427 in words is "twenty trillion, four hundred seventeen billion, three hundred thirty-one million, seven hundred sixty-two thousand, four hundred twenty-seven".