428975827251 has 16 divisors (see below), whose sum is σ = 574433970048. Its totient is φ = 284751718400.

The previous prime is 428975827193. The next prime is 428975827307. The reversal of 428975827251 is 152728579824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 428975827251 - 2⁹ = 428975826739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428975827051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743496 + ... + 1974266.

It is an arithmetic number, because the mean of its divisors is an integer number (35902123128).

Almost surely, 2^428975827251 is an apocalyptic number.

428975827251 is a deficient number, since it is larger than the sum of its proper divisors (145458142797).

428975827251 is a wasteful number, since it uses less digits than its factorization.

428975827251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233442.

The product of its digits is 22579200, while the sum is 60.

The spelling of 428975827251 in words is "four hundred twenty-eight billion, nine hundred seventy-five million, eight hundred twenty-seven thousand, two hundred fifty-one".