28440480143 has 2 divisors, whose sum is σ = 28440480144. Its totient is φ = 28440480142.

The previous prime is 28440480139. The next prime is 28440480217. The reversal of 28440480143 is 34108404482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28440480143 - 2² = 28440480139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28440480097 and 28440480106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28440483143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14220240071 + 14220240072.

It is an arithmetic number, because the mean of its divisors is an integer number (14220240072).

Almost surely, 2^28440480143 is an apocalyptic number.

28440480143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28440480143 is an equidigital number, since it uses as much as digits as its factorization.

28440480143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 38.

The spelling of 28440480143 in words is "twenty-eight billion, four hundred forty million, four hundred eighty thousand, one hundred forty-three".