20330788469 has 4 divisors (see below), whose sum is σ = 20334388044. Its totient is φ = 20327188896.

The previous prime is 20330788451. The next prime is 20330788477. The reversal of 20330788469 is 96488703302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7649776369 + 12681012100 = 87463^2 + 112610^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330788469 - 2¹² = 20330784373 is a prime.

It is a super-2 number, since 2×20330788469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330782469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1791302 + ... + 1802615.

It is an arithmetic number, because the mean of its divisors is an integer number (5083597011).

Almost surely, 2^20330788469 is an apocalyptic number.

It is an amenable number.

20330788469 is a deficient number, since it is larger than the sum of its proper divisors (3599575).

20330788469 is an equidigital number, since it uses as much as digits as its factorization.

20330788469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599574.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 20330788469 in words is "twenty billion, three hundred thirty million, seven hundred eighty-eight thousand, four hundred sixty-nine".