428768627651 has 32 divisors (see below), whose sum is σ = 531610197888. Its totient is φ = 336749322240.

The previous prime is 428768627627. The next prime is 428768627653. The reversal of 428768627651 is 156726867824.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428768627651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428768627653) 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 31 ways as a sum of consecutive naturals, for example, 8070065 + ... + 8123021.

It is an arithmetic number, because the mean of its divisors is an integer number (16612818684).

Almost surely, 2^428768627651 is an apocalyptic number.

428768627651 is a deficient number, since it is larger than the sum of its proper divisors (102841570237).

428768627651 is a wasteful number, since it uses less digits than its factorization.

428768627651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53631.

The product of its digits is 54190080, while the sum is 62.

The spelling of 428768627651 in words is "four hundred twenty-eight billion, seven hundred sixty-eight million, six hundred twenty-seven thousand, six hundred fifty-one".