428976664499 has 4 divisors (see below), whose sum is σ = 429291858120. Its totient is φ = 428661470880.

The previous prime is 428976664483. The next prime is 428976664549. The reversal of 428976664499 is 994466679824.

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 428976664499 - 2⁴ = 428976664483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428976664469) 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, 157594769 + ... + 157597490.

It is an arithmetic number, because the mean of its divisors is an integer number (107322964530).

Almost surely, 2^428976664499 is an apocalyptic number.

428976664499 is a deficient number, since it is larger than the sum of its proper divisors (315193621).

428976664499 is a wasteful number, since it uses less digits than its factorization.

428976664499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315193620.

The product of its digits is 1128701952, while the sum is 74.

The spelling of 428976664499 in words is "four hundred twenty-eight billion, nine hundred seventy-six million, six hundred sixty-four thousand, four hundred ninety-nine".