20110404469 has 2 divisors, whose sum is σ = 20110404470. Its totient is φ = 20110404468.

The previous prime is 20110404451. The next prime is 20110404481. The reversal of 20110404469 is 96440401102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19835342244 + 275062225 = 140838^2 + 16585^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110404469 - 2¹¹ = 20110402421 is a prime.

It is a super-2 number, since 2×20110404469² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20110404469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110404569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055202234 + 10055202235.

It is an arithmetic number, because the mean of its divisors is an integer number (10055202235).

Almost surely, 2^20110404469 is an apocalyptic number.

It is an amenable number.

20110404469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110404469 is an equidigital number, since it uses as much as digits as its factorization.

20110404469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 20110404469 in words is "twenty billion, one hundred ten million, four hundred four thousand, four hundred sixty-nine".