428274305479 has 2 divisors, whose sum is σ = 428274305480. Its totient is φ = 428274305478.

The previous prime is 428274305449. The next prime is 428274305491. The reversal of 428274305479 is 974503472824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428274305479 - 2⁷ = 428274305351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428274305449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214137152739 + 214137152740.

It is an arithmetic number, because the mean of its divisors is an integer number (214137152740).

Almost surely, 2^428274305479 is an apocalyptic number.

428274305479 is a deficient number, since it is larger than the sum of its proper divisors (1).

428274305479 is an equidigital number, since it uses as much as digits as its factorization.

428274305479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 428274305479 in words is "four hundred twenty-eight billion, two hundred seventy-four million, three hundred five thousand, four hundred seventy-nine".