428106691318 has 16 divisors (see below), whose sum is σ = 684514368000. Its totient is φ = 200220449832.

The previous prime is 428106691307. The next prime is 428106691319. The reversal of 428106691318 is 813196601824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428106691319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71300578 + ... + 71306581.

It is an arithmetic number, because the mean of its divisors is an integer number (42782148000).

Almost surely, 2^428106691318 is an apocalyptic number.

428106691318 is a deficient number, since it is larger than the sum of its proper divisors (256407676682).

428106691318 is a wasteful number, since it uses less digits than its factorization.

428106691318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142607259.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 428106691318 in words is "four hundred twenty-eight billion, one hundred six million, six hundred ninety-one thousand, three hundred eighteen".