428933836842 has 64 divisors (see below), whose sum is σ = 1056048758784. Its totient is φ = 113442721920.

The previous prime is 428933836813. The next prime is 428933836853. The reversal of 428933836842 is 248638339824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7131843 + ... + 7191734.

It is an arithmetic number, because the mean of its divisors is an integer number (16500761856).

Almost surely, 2^428933836842 is an apocalyptic number.

428933836842 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

428933836842 is an abundant number, since it is smaller than the sum of its proper divisors (627114921942).

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

428933836842 is a wasteful number, since it uses less digits than its factorization.

428933836842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14323643.

The product of its digits is 47775744, while the sum is 60.

The spelling of 428933836842 in words is "four hundred twenty-eight billion, nine hundred thirty-three million, eight hundred thirty-six thousand, eight hundred forty-two".