21484571012 has 12 divisors (see below), whose sum is σ = 37720470480. Its totient is φ = 10707293736.

The previous prime is 21484570993. The next prime is 21484571039. The reversal of 21484571012 is 21017548412.

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, 8746562 + ... + 8749017.

It is an arithmetic number, because the mean of its divisors is an integer number (3143372540).

Almost surely, 2^21484571012 is an apocalyptic number.

It is an amenable number.

21484571012 is a deficient number, since it is larger than the sum of its proper divisors (16235899468).

21484571012 is a wasteful number, since it uses less digits than its factorization.

21484571012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17495890 (or 17495888 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The spelling of 21484571012 in words is "twenty-one billion, four hundred eighty-four million, five hundred seventy-one thousand, twelve".