428303761771 has 2 divisors, whose sum is σ = 428303761772. Its totient is φ = 428303761770.

The previous prime is 428303761763. The next prime is 428303761777. The reversal of 428303761771 is 177167303824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428303761771 - 2³ = 428303761763 is a prime.

It is a super-2 number, since 2×428303761771² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (428303761777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214151880885 + 214151880886.

It is an arithmetic number, because the mean of its divisors is an integer number (214151880886).

Almost surely, 2^428303761771 is an apocalyptic number.

428303761771 is a deficient number, since it is larger than the sum of its proper divisors (1).

428303761771 is an equidigital number, since it uses as much as digits as its factorization.

428303761771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 428303761771 in words is "four hundred twenty-eight billion, three hundred three million, seven hundred sixty-one thousand, seven hundred seventy-one".