20608900727 has 2 divisors, whose sum is σ = 20608900728. Its totient is φ = 20608900726.

The previous prime is 20608900687. The next prime is 20608900733. The reversal of 20608900727 is 72700980602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20608900727 - 2²⁰ = 20607852151 is a prime.

It is a super-2 number, since 2×20608900727² (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 (20608900927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10304450363 + 10304450364.

It is an arithmetic number, because the mean of its divisors is an integer number (10304450364).

Almost surely, 2^20608900727 is an apocalyptic number.

20608900727 is a deficient number, since it is larger than the sum of its proper divisors (1).

20608900727 is an equidigital number, since it uses as much as digits as its factorization.

20608900727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 20608900727 in words is "twenty billion, six hundred eight million, nine hundred thousand, seven hundred twenty-seven".