20467466689 has 2 divisors, whose sum is σ = 20467466690. Its totient is φ = 20467466688.

The previous prime is 20467466681. The next prime is 20467466699. The reversal of 20467466689 is 98666476402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18512323600 + 1955143089 = 136060^2 + 44217^2 .

It is a cyclic number.

It is not a de Polignac number, because 20467466689 - 2³ = 20467466681 is a prime.

It is not a weakly prime, because it can be changed into another prime (20467466681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10233733344 + 10233733345.

It is an arithmetic number, because the mean of its divisors is an integer number (10233733345).

Almost surely, 2^20467466689 is an apocalyptic number.

It is an amenable number.

20467466689 is a deficient number, since it is larger than the sum of its proper divisors (1).

20467466689 is an equidigital number, since it uses as much as digits as its factorization.

20467466689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 20467466689 in words is "twenty billion, four hundred sixty-seven million, four hundred sixty-six thousand, six hundred eighty-nine".