285403137479 has 2 divisors, whose sum is σ = 285403137480. Its totient is φ = 285403137478.

The previous prime is 285403137463. The next prime is 285403137521. The reversal of 285403137479 is 974731304582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285403137479 - 2⁴ = 285403137463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285403137479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285403137779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142701568739 + 142701568740.

It is an arithmetic number, because the mean of its divisors is an integer number (142701568740).

Almost surely, 2^285403137479 is an apocalyptic number.

285403137479 is a deficient number, since it is larger than the sum of its proper divisors (1).

285403137479 is an equidigital number, since it uses as much as digits as its factorization.

285403137479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 285403137479 in words is "two hundred eighty-five billion, four hundred three million, one hundred thirty-seven thousand, four hundred seventy-nine".