20727934603 has 2 divisors, whose sum is σ = 20727934604. Its totient is φ = 20727934602.

The previous prime is 20727934597. The next prime is 20727934637. The reversal of 20727934603 is 30643972702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20727934603 - 2⁵ = 20727934571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20727934603.

It is not a weakly prime, because it can be changed into another prime (20727964603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10363967301 + 10363967302.

It is an arithmetic number, because the mean of its divisors is an integer number (10363967302).

Almost surely, 2^20727934603 is an apocalyptic number.

20727934603 is a deficient number, since it is larger than the sum of its proper divisors (1).

20727934603 is an equidigital number, since it uses as much as digits as its factorization.

20727934603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 20727934603 in words is "twenty billion, seven hundred twenty-seven million, nine hundred thirty-four thousand, six hundred three".