427521435446 has 12 divisors (see below), whose sum is σ = 745981280388. Its totient is φ = 183223472292.

The previous prime is 427521435433. The next prime is 427521435479. The reversal of 427521435446 is 644534125724.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 427521435446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2181231716 + ... + 2181231911.

It is an arithmetic number, because the mean of its divisors is an integer number (62165106699).

Almost surely, 2^427521435446 is an apocalyptic number.

427521435446 is a deficient number, since it is larger than the sum of its proper divisors (318459844942).

427521435446 is a wasteful number, since it uses less digits than its factorization.

427521435446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362463643 (or 4362463636 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 47.

The spelling of 427521435446 in words is "four hundred twenty-seven billion, five hundred twenty-one million, four hundred thirty-five thousand, four hundred forty-six".