20124695097839 has 2 divisors, whose sum is σ = 20124695097840. Its totient is φ = 20124695097838.

The previous prime is 20124695097769. The next prime is 20124695097841. The reversal of 20124695097839 is 93879059642102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20124695097839 - 2¹⁶ = 20124695032303 is a prime.

Together with 20124695097841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20124695097889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062347548919 + 10062347548920.

It is an arithmetic number, because the mean of its divisors is an integer number (10062347548920).

It is a 3-persistent number, because k⋅20124695097839 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2^{20124695097839} is an apocalyptic number.

20124695097839 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124695097839 is an equidigital number, since it uses as much as digits as its factorization.

20124695097839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 20124695097839 in words is "twenty trillion, one hundred twenty-four billion, six hundred ninety-five million, ninety-seven thousand, eight hundred thirty-nine".