28144022567711 has 12 divisors (see below), whose sum is σ = 29703607078824. Its totient is φ = 26662436074800.

The previous prime is 28144022567629. The next prime is 28144022567729. The reversal of 28144022567711 is 11776522044182.

It is a de Polignac number, because none of the positive numbers 2^k-28144022567711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28144022567711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28144022567761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32675321 + ... + 33525581.

It is an arithmetic number, because the mean of its divisors is an integer number (2475300589902).

Almost surely, 2^{28144022567711} is an apocalyptic number.

28144022567711 is a deficient number, since it is larger than the sum of its proper divisors (1559584511113).

28144022567711 is an equidigital number, since it uses as much as digits as its factorization.

28144022567711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941990 (or 941971 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 28144022567711 in words is "twenty-eight trillion, one hundred forty-four billion, twenty-two million, five hundred sixty-seven thousand, seven hundred eleven".