10212567644 has 12 divisors (see below), whose sum is σ = 17873293704. Its totient is φ = 5105912304.

The previous prime is 10212567643. The next prime is 10212567679. The reversal of 10212567644 is 44676521201.

It is a happy number.

10212567644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10212567598 and 10212567607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212567643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25619 + ... + 145194.

It is an arithmetic number, because the mean of its divisors is an integer number (1489441142).

Almost surely, 2^10212567644 is an apocalyptic number.

It is an amenable number.

10212567644 is a deficient number, since it is larger than the sum of its proper divisors (7660726060).

10212567644 is a wasteful number, since it uses less digits than its factorization.

10212567644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185764 (or 185762 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 10212567644 in words is "ten billion, two hundred twelve million, five hundred sixty-seven thousand, six hundred forty-four".