20038434827 has 2 divisors, whose sum is σ = 20038434828. Its totient is φ = 20038434826.

The previous prime is 20038434821. The next prime is 20038434853. The reversal of 20038434827 is 72843483002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20038434827 - 2⁶ = 20038434763 is a prime.

It is not a weakly prime, because it can be changed into another prime (20038434821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10019217413 + 10019217414.

It is an arithmetic number, because the mean of its divisors is an integer number (10019217414).

Almost surely, 2^20038434827 is an apocalyptic number.

20038434827 is a deficient number, since it is larger than the sum of its proper divisors (1).

20038434827 is an equidigital number, since it uses as much as digits as its factorization.

20038434827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 20038434827 in words is "twenty billion, thirty-eight million, four hundred thirty-four thousand, eight hundred twenty-seven".