281283893479 has 2 divisors, whose sum is σ = 281283893480. Its totient is φ = 281283893478.

The previous prime is 281283893413. The next prime is 281283893503. The reversal of 281283893479 is 974398382182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281283893479 - 2³¹ = 279136409831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 281283893479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281283893179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140641946739 + 140641946740.

It is an arithmetic number, because the mean of its divisors is an integer number (140641946740).

Almost surely, 2^281283893479 is an apocalyptic number.

281283893479 is a deficient number, since it is larger than the sum of its proper divisors (1).

281283893479 is an equidigital number, since it uses as much as digits as its factorization.

281283893479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 64.

The spelling of 281283893479 in words is "two hundred eighty-one billion, two hundred eighty-three million, eight hundred ninety-three thousand, four hundred seventy-nine".