20489627848 has 16 divisors (see below), whose sum is σ = 38419678080. Its totient is φ = 10244380368.

The previous prime is 20489627827. The next prime is 20489627849. The reversal of 20489627848 is 84872698402.

It is a super-2 number, since 2×20489627848² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20489627792 and 20489627801.

It is not an unprimeable number, because it can be changed into a prime (20489627849) 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, 241665 + ... + 315247.

It is an arithmetic number, because the mean of its divisors is an integer number (2401229880).

Almost surely, 2^20489627848 is an apocalyptic number.

It is an amenable number.

20489627848 is a deficient number, since it is larger than the sum of its proper divisors (17930050232).

20489627848 is a wasteful number, since it uses less digits than its factorization.

20489627848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108396 (or 108392 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 20489627848 in words is "twenty billion, four hundred eighty-nine million, six hundred twenty-seven thousand, eight hundred forty-eight".