428754222855 has 24 divisors (see below), whose sum is σ = 849341699232. Its totient is φ = 196001930304.

The previous prime is 428754222847. The next prime is 428754222899. The reversal of 428754222855 is 558222457824.

428754222855 is a `hidden beast` number, since 4 + 28 + 7 + 542 + 2 + 28 + 55 = 666.

It is not a de Polignac number, because 428754222855 - 2³ = 428754222847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 680561944 + ... + 680562573.

It is an arithmetic number, because the mean of its divisors is an integer number (35389237468).

Almost surely, 2^428754222855 is an apocalyptic number.

428754222855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

428754222855 is a deficient number, since it is larger than the sum of its proper divisors (420587476377).

428754222855 is a wasteful number, since it uses less digits than its factorization.

428754222855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361124535 (or 1361124532 counting only the distinct ones).

The product of its digits is 14336000, while the sum is 54.

The spelling of 428754222855 in words is "four hundred twenty-eight billion, seven hundred fifty-four million, two hundred twenty-two thousand, eight hundred fifty-five".