20300027849 has 2 divisors, whose sum is σ = 20300027850. Its totient is φ = 20300027848.

The previous prime is 20300027827. The next prime is 20300027903. The reversal of 20300027849 is 94872000302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14146723600 + 6153304249 = 118940^2 + 78443^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300027849 - 2⁸ = 20300027593 is a prime.

It is a super-2 number, since 2×20300027849² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20300021849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150013924 + 10150013925.

It is an arithmetic number, because the mean of its divisors is an integer number (10150013925).

Almost surely, 2^20300027849 is an apocalyptic number.

It is an amenable number.

20300027849 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300027849 is an equidigital number, since it uses as much as digits as its factorization.

20300027849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20300027849 in words is "twenty billion, three hundred million, twenty-seven thousand, eight hundred forty-nine".