428965166627 has 4 divisors (see below), whose sum is σ = 451542280680. Its totient is φ = 406388052576.

The previous prime is 428965166521. The next prime is 428965166639. The reversal of 428965166627 is 726661569824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428965166627 - 2¹² = 428965162531 is a prime.

It is a super-2 number, since 2×428965166627² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428965166627.

It is not an unprimeable number, because it can be changed into a prime (428965166677) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11288556998 + ... + 11288557035.

It is an arithmetic number, because the mean of its divisors is an integer number (112885570170).

Almost surely, 2^428965166627 is an apocalyptic number.

428965166627 is a deficient number, since it is larger than the sum of its proper divisors (22577114053).

428965166627 is a wasteful number, since it uses less digits than its factorization.

428965166627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577114052.

The product of its digits is 52254720, while the sum is 62.

The spelling of 428965166627 in words is "four hundred twenty-eight billion, nine hundred sixty-five million, one hundred sixty-six thousand, six hundred twenty-seven".