20824286480 has 40 divisors (see below), whose sum is σ = 50521534272. Its totient is φ = 7967552384.

The previous prime is 20824286453. The next prime is 20824286533. The reversal of 20824286480 is 8468242802.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20824286480² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656934 + ... + 5660613.

Almost surely, 2^20824286480 is an apocalyptic number.

20824286480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20824286480 is an abundant number, since it is smaller than the sum of its proper divisors (29697247792).

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

20824286480 is a wasteful number, since it uses less digits than its factorization.

20824286480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317583 (or 11317577 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 20824286480 in words is "twenty billion, eight hundred twenty-four million, two hundred eighty-six thousand, four hundred eighty".