20608624423 has 2 divisors, whose sum is σ = 20608624424. Its totient is φ = 20608624422.

The previous prime is 20608624373. The next prime is 20608624429. The reversal of 20608624423 is 32442680602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20608624423 is a prime.

It is a super-3 number, since 3×20608624423³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20608624429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10304312211 + 10304312212.

It is an arithmetic number, because the mean of its divisors is an integer number (10304312212).

Almost surely, 2^20608624423 is an apocalyptic number.

20608624423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20608624423 is an equidigital number, since it uses as much as digits as its factorization.

20608624423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 20608624423 in words is "twenty billion, six hundred eight million, six hundred twenty-four thousand, four hundred twenty-three".