21923412480 has 160 divisors (see below), whose sum is σ = 77874033600. Its totient is φ = 5846224896.

The previous prime is 21923412463. The next prime is 21923412491. The reversal of 21923412480 is 8421432912.

21923412480 is a `hidden beast` number, since 219 + 2 + 341 + 24 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89470 + ... + 227709.

It is an arithmetic number, because the mean of its divisors is an integer number (486712710).

Almost surely, 2^21923412480 is an apocalyptic number.

21923412480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21923412480 is an abundant number, since it is smaller than the sum of its proper divisors (55950621120).

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

21923412480 is an equidigital number, since it uses as much as digits as its factorization.

21923412480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317211 (or 317189 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 21923412480 in words is "twenty-one billion, nine hundred twenty-three million, four hundred twelve thousand, four hundred eighty".