428614189378 has 16 divisors (see below), whose sum is σ = 659825131680. Its totient is φ = 208702057536.

The previous prime is 428614189373. The next prime is 428614189387. The reversal of 428614189378 is 873981416824.

It is not an unprimeable number, because it can be changed into a prime (428614189373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7365508 + ... + 7423471.

It is an arithmetic number, because the mean of its divisors is an integer number (41239070730).

Almost surely, 2^428614189378 is an apocalyptic number.

428614189378 is a deficient number, since it is larger than the sum of its proper divisors (231210942302).

428614189378 is a wasteful number, since it uses less digits than its factorization.

428614189378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14789361.

The product of its digits is 18579456, while the sum is 61.

The spelling of 428614189378 in words is "four hundred twenty-eight billion, six hundred fourteen million, one hundred eighty-nine thousand, three hundred seventy-eight".