10212405856 has 24 divisors (see below), whose sum is σ = 20405763000. Its totient is φ = 5029989888.

The previous prime is 10212405851. The next prime is 10212405899. The reversal of 10212405856 is 65850421201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212405851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2379481 + ... + 2383768.

It is an arithmetic number, because the mean of its divisors is an integer number (850240125).

Almost surely, 2^10212405856 is an apocalyptic number.

10212405856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10212405856 is a deficient number, since it is larger than the sum of its proper divisors (10193357144).

10212405856 is an equidigital number, since it uses as much as digits as its factorization.

10212405856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763326 (or 4763318 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 10212405856 in words is "ten billion, two hundred twelve million, four hundred five thousand, eight hundred fifty-six".