428342772846 has 32 divisors (see below), whose sum is σ = 875018331648. Its totient is φ = 139726192320.

The previous prime is 428342772833. The next prime is 428342772857. The reversal of 428342772846 is 648277243824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2369901 + ... + 2544231.

It is an arithmetic number, because the mean of its divisors is an integer number (27344322864).

Almost surely, 2^428342772846 is an apocalyptic number.

428342772846 is an abundant number, since it is smaller than the sum of its proper divisors (446675558802).

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

428342772846 is a wasteful number, since it uses less digits than its factorization.

428342772846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183096.

The product of its digits is 28901376, while the sum is 57.

The spelling of 428342772846 in words is "four hundred twenty-eight billion, three hundred forty-two million, seven hundred seventy-two thousand, eight hundred forty-six".