20403848469 has 12 divisors (see below), whose sum is σ = 27728132096. Its totient is φ = 13345907952.

The previous prime is 20403848467. The next prime is 20403848471. The reversal of 20403848469 is 96484830402.

It is an interprime number because it is at equal distance from previous prime (20403848467) and next prime (20403848471).

It is not a de Polignac number, because 20403848469 - 2¹ = 20403848467 is a prime.

It is a super-2 number, since 2×20403848469² (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 (20403848467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1202197 + ... + 1219050.

Almost surely, 2^20403848469 is an apocalyptic number.

It is an amenable number.

20403848469 is a deficient number, since it is larger than the sum of its proper divisors (7324283627).

20403848469 is an equidigital number, since it uses as much as digits as its factorization.

20403848469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421356 (or 2421303 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 20403848469 in words is "twenty billion, four hundred three million, eight hundred forty-eight thousand, four hundred sixty-nine".