20748682020 has 48 divisors (see below), whose sum is σ = 63377794368. Its totient is φ = 5029983360.

The previous prime is 20748681983. The next prime is 20748682037. The reversal of 20748682020 is 2028684702.

It is a super-3 number, since 3×20748682020³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20748682020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15718039 + ... + 15719358.

It is an arithmetic number, because the mean of its divisors is an integer number (1320370716).

Almost surely, 2^20748682020 is an apocalyptic number.

20748682020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20748682020 is an abundant number, since it is smaller than the sum of its proper divisors (42629112348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20748682020 is a wasteful number, since it uses less digits than its factorization.

20748682020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31437420 (or 31437418 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 20748682020 in words is "twenty billion, seven hundred forty-eight million, six hundred eighty-two thousand, twenty".