20787803027 has 2 divisors, whose sum is σ = 20787803028. Its totient is φ = 20787803026.

The previous prime is 20787803011. The next prime is 20787803033. The reversal of 20787803027 is 72030878702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20787803027 - 2⁴ = 20787803011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20787803227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10393901513 + 10393901514.

It is an arithmetic number, because the mean of its divisors is an integer number (10393901514).

Almost surely, 2^20787803027 is an apocalyptic number.

20787803027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20787803027 is an equidigital number, since it uses as much as digits as its factorization.

20787803027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 20787803027 in words is "twenty billion, seven hundred eighty-seven million, eight hundred three thousand, twenty-seven".