428819113523 has 2 divisors, whose sum is σ = 428819113524. Its totient is φ = 428819113522.

The previous prime is 428819113501. The next prime is 428819113549. The reversal of 428819113523 is 325311918824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428819113523 - 2³⁰ = 427745371699 is a prime.

It is a super-2 number, since 2×428819113523² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (428819113553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214409556761 + 214409556762.

It is an arithmetic number, because the mean of its divisors is an integer number (214409556762).

Almost surely, 2^428819113523 is an apocalyptic number.

428819113523 is a deficient number, since it is larger than the sum of its proper divisors (1).

428819113523 is an equidigital number, since it uses as much as digits as its factorization.

428819113523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 47.

The spelling of 428819113523 in words is "four hundred twenty-eight billion, eight hundred nineteen million, one hundred thirteen thousand, five hundred twenty-three".