20824084680 has 96 divisors (see below), whose sum is σ = 72671826240. Its totient is φ = 4759789440.

The previous prime is 20824084679. The next prime is 20824084681. The reversal of 20824084680 is 8648042802.

It is an interprime number because it is at equal distance from previous prime (20824084679) and next prime (20824084681).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (20824084681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1764876 + ... + 1776635.

It is an arithmetic number, because the mean of its divisors is an integer number (756998190).

Almost surely, 2^20824084680 is an apocalyptic number.

20824084680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20824084680 is an abundant number, since it is smaller than the sum of its proper divisors (51847741560).

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

20824084680 is a wasteful number, since it uses less digits than its factorization.

20824084680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541539 (or 3541528 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 20824084680 in words is "twenty billion, eight hundred twenty-four million, eighty-four thousand, six hundred eighty".