20389269601 has 2 divisors, whose sum is σ = 20389269602. Its totient is φ = 20389269600.

The previous prime is 20389269577. The next prime is 20389269629. The reversal of 20389269601 is 10696298302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10760950225 + 9628319376 = 103735^2 + 98124^2 .

It is a cyclic number.

It is not a de Polignac number, because 20389269601 - 2⁷ = 20389269473 is a prime.

It is not a weakly prime, because it can be changed into another prime (20389269661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10194634800 + 10194634801.

It is an arithmetic number, because the mean of its divisors is an integer number (10194634801).

Almost surely, 2^20389269601 is an apocalyptic number.

It is an amenable number.

20389269601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20389269601 is an equidigital number, since it uses as much as digits as its factorization.

20389269601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 20389269601 in words is "twenty billion, three hundred eighty-nine million, two hundred sixty-nine thousand, six hundred one".