428019365138 has 16 divisors (see below), whose sum is σ = 684984747744. Its totient is φ = 199883311680.

The previous prime is 428019365117. The next prime is 428019365231. The reversal of 428019365138 is 831563910824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48044420 + ... + 48053327.

It is an arithmetic number, because the mean of its divisors is an integer number (42811546734).

Almost surely, 2^428019365138 is an apocalyptic number.

428019365138 is a deficient number, since it is larger than the sum of its proper divisors (256965382606).

428019365138 is a wasteful number, since it uses less digits than its factorization.

428019365138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96097897.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 428019365138 in words is "four hundred twenty-eight billion, nineteen million, three hundred sixty-five thousand, one hundred thirty-eight".