428053565672 has 16 divisors (see below), whose sum is σ = 802614022560. Its totient is φ = 214023159664.

The previous prime is 428053565671. The next prime is 428053565677. The reversal of 428053565672 is 276565350824.

It is a happy number.

It is a super-3 number, since 3×428053565672³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (428053565671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87083 + ... + 929349.

It is an arithmetic number, because the mean of its divisors is an integer number (50163376410).

Almost surely, 2^428053565672 is an apocalyptic number.

It is an amenable number.

428053565672 is a deficient number, since it is larger than the sum of its proper divisors (374560456888).

428053565672 is a wasteful number, since it uses less digits than its factorization.

428053565672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905800 (or 905796 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 53.

The spelling of 428053565672 in words is "four hundred twenty-eight billion, fifty-three million, five hundred sixty-five thousand, six hundred seventy-two".