428183439651 has 96 divisors (see below), whose sum is σ = 718163020800. Its totient is φ = 250043371200.

The previous prime is 428183439613. The next prime is 428183439653. The reversal of 428183439651 is 156934381824.

It is a happy number.

428183439651 is a `hidden beast` number, since 4 + 2 + 81 + 83 + 439 + 6 + 51 = 666.

It is not a de Polignac number, because 428183439651 - 2¹¹ = 428183437603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428183439653) 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 95 ways as a sum of consecutive naturals, for example, 68211525 + ... + 68217801.

It is an arithmetic number, because the mean of its divisors is an integer number (7480864800).

Almost surely, 2^428183439651 is an apocalyptic number.

428183439651 is a deficient number, since it is larger than the sum of its proper divisors (289979581149).

428183439651 is a wasteful number, since it uses less digits than its factorization.

428183439651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6598 (or 6561 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 428183439651 in words is "four hundred twenty-eight billion, one hundred eighty-three million, four hundred thirty-nine thousand, six hundred fifty-one".