428147818651 has 32 divisors (see below), whose sum is σ = 531710784000. Its totient is φ = 336426711552.

The previous prime is 428147818649. The next prime is 428147818691. The reversal of 428147818651 is 156818741824.

It is a cyclic number.

It is not a de Polignac number, because 428147818651 - 2¹ = 428147818649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428147818592 and 428147818601.

It is not an unprimeable number, because it can be changed into a prime (428147818621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485560 + ... + 1045018.

It is an arithmetic number, because the mean of its divisors is an integer number (16615962000).

Almost surely, 2^428147818651 is an apocalyptic number.

428147818651 is a deficient number, since it is larger than the sum of its proper divisors (103562965349).

428147818651 is a wasteful number, since it uses less digits than its factorization.

428147818651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559651.

The product of its digits is 3440640, while the sum is 55.

The spelling of 428147818651 in words is "four hundred twenty-eight billion, one hundred forty-seven million, eight hundred eighteen thousand, six hundred fifty-one".