428019358669 has 32 divisors (see below), whose sum is σ = 496836506880. Its totient is φ = 361154764800.

The previous prime is 428019358577. The next prime is 428019358769. The reversal of 428019358669 is 966853910824.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428019358669 is a prime.

It is a super-2 number, since 2×428019358669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428019358469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264045679 + ... + 264047299.

It is an arithmetic number, because the mean of its divisors is an integer number (15526140840).

Almost surely, 2^428019358669 is an apocalyptic number.

It is an amenable number.

428019358669 is a deficient number, since it is larger than the sum of its proper divisors (68817148211).

428019358669 is a wasteful number, since it uses less digits than its factorization.

428019358669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061.

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 428019358669 in words is "four hundred twenty-eight billion, nineteen million, three hundred fifty-eight thousand, six hundred sixty-nine".