428465512854 has 24 divisors (see below), whose sum is σ = 977202047640. Its totient is φ = 135304898688.

The previous prime is 428465512847. The next prime is 428465512897. The reversal of 428465512854 is 458215564824.

428465512854 is a `hidden beast` number, since 4 + 2 + 8 + 4 + 6 + 551 + 2 + 85 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 428465512854.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626411227 + ... + 626411910.

It is an arithmetic number, because the mean of its divisors is an integer number (40716751985).

Almost surely, 2^428465512854 is an apocalyptic number.

428465512854 is an abundant number, since it is smaller than the sum of its proper divisors (548736534786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428465512854 is a wasteful number, since it uses less digits than its factorization.

428465512854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252823164 (or 1252823161 counting only the distinct ones).

The product of its digits is 12288000, while the sum is 54.

The spelling of 428465512854 in words is "four hundred twenty-eight billion, four hundred sixty-five million, five hundred twelve thousand, eight hundred fifty-four".