20280498469 has 48 divisors (see below), whose sum is σ = 26794285056. Its totient is φ = 14884452000.

The previous prime is 20280498467. The next prime is 20280498473. The reversal of 20280498469 is 96489408202.

It is not a de Polignac number, because 20280498469 - 2¹ = 20280498467 is a prime.

It is a super-2 number, since 2×20280498469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20280498467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7948744 + ... + 7951294.

It is an arithmetic number, because the mean of its divisors is an integer number (558214272).

Almost surely, 2^20280498469 is an apocalyptic number.

It is an amenable number.

20280498469 is a deficient number, since it is larger than the sum of its proper divisors (6513786587).

20280498469 is a wasteful number, since it uses less digits than its factorization.

20280498469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 20280498469 in words is "twenty billion, two hundred eighty million, four hundred ninety-eight thousand, four hundred sixty-nine".