21807466470812 has 48 divisors (see below), whose sum is σ = 42051852470880. Its totient is φ = 9812657376000.

The previous prime is 21807466470791. The next prime is 21807466470827.

21807466470812 is nontrivially palindromic in base 10.

It is a congruent number.

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, 25663778 + ... + 26499894.

It is an arithmetic number, because the mean of its divisors is an integer number (876080259810).

Almost surely, 2^{21807466470812} is an apocalyptic number.

21807466470812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21807466470812 is a deficient number, since it is larger than the sum of its proper divisors (20244386000068).

21807466470812 is a wasteful number, since it uses less digits than its factorization.

21807466470812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842102 (or 842100 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 21807466470812 in words is "twenty-one trillion, eight hundred seven billion, four hundred sixty-six million, four hundred seventy thousand, eight hundred twelve".