428271178560 has 56 divisors (see below), whose sum is σ = 1359760994976. Its totient is φ = 114205647360.

The previous prime is 428271178513. The next prime is 428271178567. The reversal of 428271178560 is 65871172824.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428271178567) 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, 223056946 + ... + 223058865.

Almost surely, 2^428271178560 is an apocalyptic number.

428271178560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428271178560 is an abundant number, since it is smaller than the sum of its proper divisors (931489816416).

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

428271178560 is a wasteful number, since it uses less digits than its factorization.

428271178560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446115831 (or 446115821 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 51.

The spelling of 428271178560 in words is "four hundred twenty-eight billion, two hundred seventy-one million, one hundred seventy-eight thousand, five hundred sixty".