428795941261 has 2 divisors, whose sum is σ = 428795941262. Its totient is φ = 428795941260.

The previous prime is 428795941243. The next prime is 428795941267. The reversal of 428795941261 is 162149597824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268811140900 + 159984800361 = 518470^2 + 399981^2 .

It is a cyclic number.

It is not a de Polignac number, because 428795941261 - 2¹⁷ = 428795810189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428795941196 and 428795941205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428795941267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214397970630 + 214397970631.

It is an arithmetic number, because the mean of its divisors is an integer number (214397970631).

Almost surely, 2^428795941261 is an apocalyptic number.

It is an amenable number.

428795941261 is a deficient number, since it is larger than the sum of its proper divisors (1).

428795941261 is an equidigital number, since it uses as much as digits as its factorization.

428795941261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 58.

The spelling of 428795941261 in words is "four hundred twenty-eight billion, seven hundred ninety-five million, nine hundred forty-one thousand, two hundred sixty-one".