28211203823344 has 40 divisors (see below), whose sum is σ = 56143390343040. Its totient is φ = 13727660008128.

The previous prime is 28211203823333. The next prime is 28211203823381. The reversal of 28211203823344 is 44332830211282.

It is a self number, because there is not a number n which added to its sum of digits gives 28211203823344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158443684 + ... + 158621635.

It is an arithmetic number, because the mean of its divisors is an integer number (1403584758576).

Almost surely, 2^{28211203823344} is an apocalyptic number.

It is an amenable number.

28211203823344 is a deficient number, since it is larger than the sum of its proper divisors (27932186519696).

28211203823344 is a wasteful number, since it uses less digits than its factorization.

28211203823344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317065477 (or 317065471 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 28211203823344 in words is "twenty-eight trillion, two hundred eleven billion, two hundred three million, eight hundred twenty-three thousand, three hundred forty-four".