21470325612 has 12 divisors (see below), whose sum is σ = 50097426456. Its totient is φ = 7156775200.

The previous prime is 21470325551. The next prime is 21470325671. The reversal of 21470325612 is 21652307412.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894596889 + ... + 894596912.

It is an arithmetic number, because the mean of its divisors is an integer number (4174785538).

Almost surely, 2^21470325612 is an apocalyptic number.

It is an amenable number.

21470325612 is an abundant number, since it is smaller than the sum of its proper divisors (28627100844).

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

21470325612 is a wasteful number, since it uses less digits than its factorization.

21470325612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789193808 (or 1789193806 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 21470325612 in words is "twenty-one billion, four hundred seventy million, three hundred twenty-five thousand, six hundred twelve".