428599837609 has 2 divisors, whose sum is σ = 428599837610. Its totient is φ = 428599837608.

The previous prime is 428599837529. The next prime is 428599837661. The reversal of 428599837609 is 906738995824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421391827609 + 7208010000 = 649147^2 + 84900^2 .

It is a cyclic number.

It is not a de Polignac number, because 428599837609 - 2⁷ = 428599837481 is a prime.

It is a super-3 number, since 3×428599837609³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (428599877609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214299918804 + 214299918805.

It is an arithmetic number, because the mean of its divisors is an integer number (214299918805).

Almost surely, 2^428599837609 is an apocalyptic number.

It is an amenable number.

428599837609 is a deficient number, since it is larger than the sum of its proper divisors (1).

428599837609 is an equidigital number, since it uses as much as digits as its factorization.

428599837609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235146240, while the sum is 70.

The spelling of 428599837609 in words is "four hundred twenty-eight billion, five hundred ninety-nine million, eight hundred thirty-seven thousand, six hundred nine".