428482758690 has 96 divisors (see below), whose sum is σ = 1274777352576. Its totient is φ = 97818036480.

The previous prime is 428482758559. The next prime is 428482758707. The reversal of 428482758690 is 96857284824.

428482758690 is a `hidden beast` number, since 4 + 2 + 8 + 48 + 2 + 7 + 586 + 9 + 0 = 666.

It is a super-2 number, since 2×428482758690² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91614 + ... + 930246.

It is an arithmetic number, because the mean of its divisors is an integer number (13278930756).

Almost surely, 2^428482758690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428482758690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637388676288).

428482758690 is an abundant number, since it is smaller than the sum of its proper divisors (846294593886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428482758690 is a wasteful number, since it uses less digits than its factorization.

428482758690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839464 (or 839461 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 63.

The spelling of 428482758690 in words is "four hundred twenty-eight billion, four hundred eighty-two million, seven hundred fifty-eight thousand, six hundred ninety".