428106564969 has 8 divisors (see below), whose sum is σ = 572425776672. Its totient is φ = 284595864960.

The previous prime is 428106564931. The next prime is 428106564971. The reversal of 428106564969 is 969465601824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428106564969 - 2⁸ = 428106564713 is a prime.

It is a super-2 number, since 2×428106564969² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428106560969) 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, 202126687 + ... + 202128804.

It is an arithmetic number, because the mean of its divisors is an integer number (71553222084).

Almost surely, 2^428106564969 is an apocalyptic number.

It is an amenable number.

428106564969 is a deficient number, since it is larger than the sum of its proper divisors (144319211703).

428106564969 is a wasteful number, since it uses less digits than its factorization.

428106564969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404255847.

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 428106564969 in words is "four hundred twenty-eight billion, one hundred six million, five hundred sixty-four thousand, nine hundred sixty-nine".