878430441113653 has 4 divisors (see below), whose sum is σ = 878605392411468. Its totient is φ = 878255489815840.

The previous prime is 878430441113647. The next prime is 878430441113669. The reversal of 878430441113653 is 356311144034878.

878430441113653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 788930856695569 + 89499584418084 = 28087913^2 + 9460422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878430441113653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878430441113683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87475641376 + ... + 87475651417.

It is an arithmetic number, because the mean of its divisors is an integer number (219651348102867).

Almost surely, 2^{878430441113653} is an apocalyptic number.

It is an amenable number.

878430441113653 is a deficient number, since it is larger than the sum of its proper divisors (174951297815).

878430441113653 is a wasteful number, since it uses less digits than its factorization.

878430441113653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174951297814.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 878430441113653 in words is "eight hundred seventy-eight trillion, four hundred thirty billion, four hundred forty-one million, one hundred thirteen thousand, six hundred fifty-three".