428019415916 has 24 divisors (see below), whose sum is σ = 775106537520. Its totient is φ = 206565049152.

The previous prime is 428019415913. The next prime is 428019415919. The reversal of 428019415916 is 619514910824.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (428019415913) and next prime (428019415919).

It is not an unprimeable number, because it can be changed into a prime (428019415913) 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, 209195 + ... + 948578.

It is an arithmetic number, because the mean of its divisors is an integer number (32296105730).

Almost surely, 2^428019415916 is an apocalyptic number.

It is an amenable number.

428019415916 is a deficient number, since it is larger than the sum of its proper divisors (347087121604).

428019415916 is a wasteful number, since it uses less digits than its factorization.

428019415916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160993 (or 1160991 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 428019415916 in words is "four hundred twenty-eight billion, nineteen million, four hundred fifteen thousand, nine hundred sixteen".