428034956551 has 2 divisors, whose sum is σ = 428034956552. Its totient is φ = 428034956550.

The previous prime is 428034956519. The next prime is 428034956651. The reversal of 428034956551 is 155659430824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428034956551 - 2⁵ = 428034956519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428034956051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214017478275 + 214017478276.

It is an arithmetic number, because the mean of its divisors is an integer number (214017478276).

Almost surely, 2^428034956551 is an apocalyptic number.

428034956551 is a deficient number, since it is larger than the sum of its proper divisors (1).

428034956551 is an equidigital number, since it uses as much as digits as its factorization.

428034956551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 428034956551 in words is "four hundred twenty-eight billion, thirty-four million, nine hundred fifty-six thousand, five hundred fifty-one".