20684572048 has 20 divisors (see below), whose sum is σ = 45801552640. Its totient is φ = 8864816544.

The previous prime is 20684572039. The next prime is 20684572057. The reversal of 20684572048 is 84027548602.

It is an interprime number because it is at equal distance from previous prime (20684572039) and next prime (20684572057).

It is a junction number, because it is equal to n+sod(n) for n = 20684571989 and 20684572007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92341728 + ... + 92341951.

It is an arithmetic number, because the mean of its divisors is an integer number (2290077632).

Almost surely, 2^20684572048 is an apocalyptic number.

20684572048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20684572048 is an abundant number, since it is smaller than the sum of its proper divisors (25116980592).

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

20684572048 is a wasteful number, since it uses less digits than its factorization.

20684572048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184683694 (or 184683688 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 20684572048 in words is "twenty billion, six hundred eighty-four million, five hundred seventy-two thousand, forty-eight".