438831084220355 has 16 divisors (see below), whose sum is σ = 528260637172320. Its totient is φ = 349955985637632.

The previous prime is 438831084220349. The next prime is 438831084220369. The reversal of 438831084220355 is 553022480138834.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 438831084220355 - 2⁸ = 438831084220099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 438831084220355.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576475631 + ... + 577236359.

It is an arithmetic number, because the mean of its divisors is an integer number (33016289823270).

Almost surely, 2^{438831084220355} is an apocalyptic number.

438831084220355 is a deficient number, since it is larger than the sum of its proper divisors (89429552951965).

438831084220355 is a wasteful number, since it uses less digits than its factorization.

438831084220355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124998.

The product of its (nonzero) digits is 22118400, while the sum is 56.

The spelling of 438831084220355 in words is "four hundred thirty-eight trillion, eight hundred thirty-one billion, eighty-four million, two hundred twenty thousand, three hundred fifty-five".