20409624119 has 2 divisors, whose sum is σ = 20409624120. Its totient is φ = 20409624118.

The previous prime is 20409624097. The next prime is 20409624127. The reversal of 20409624119 is 91142690402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20409624119 is a prime.

It is a super-2 number, since 2×20409624119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20409624019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10204812059 + 10204812060.

It is an arithmetic number, because the mean of its divisors is an integer number (10204812060).

Almost surely, 2^20409624119 is an apocalyptic number.

20409624119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20409624119 is an equidigital number, since it uses as much as digits as its factorization.

20409624119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 20409624119 in words is "twenty billion, four hundred nine million, six hundred twenty-four thousand, one hundred nineteen".