428471784768 has 28 divisors (see below), whose sum is σ = 1133664931040. Its totient is φ = 142823928192.

The previous prime is 428471784733. The next prime is 428471784809. The reversal of 428471784768 is 867487174824.

It is a junction number, because it is equal to n+sod(n) for n = 428471784699 and 428471784708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115811748 + ... + 1115812131.

Almost surely, 2^428471784768 is an apocalyptic number.

428471784768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

428471784768 is an abundant number, since it is smaller than the sum of its proper divisors (705193146272).

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

428471784768 is a wasteful number, since it uses less digits than its factorization.

428471784768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231623894 (or 2231623884 counting only the distinct ones).

The product of its digits is 134873088, while the sum is 66.

The spelling of 428471784768 in words is "four hundred twenty-eight billion, four hundred seventy-one million, seven hundred eighty-four thousand, seven hundred sixty-eight".