428190819001 has 4 divisors (see below), whose sum is σ = 467117257104. Its totient is φ = 389264380900.

The previous prime is 428190818981. The next prime is 428190819019. The reversal of 428190819001 is 100918091824.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428190819001 - 2⁷ = 428190818873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428190819041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19463219035 + ... + 19463219056.

It is an arithmetic number, because the mean of its divisors is an integer number (116779314276).

Almost surely, 2^428190819001 is an apocalyptic number.

It is an amenable number.

428190819001 is a deficient number, since it is larger than the sum of its proper divisors (38926438103).

428190819001 is a wasteful number, since it uses less digits than its factorization.

428190819001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38926438102.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 428190819001 in words is "four hundred twenty-eight billion, one hundred ninety million, eight hundred nineteen thousand, one".