875681194645 has 4 divisors (see below), whose sum is σ = 1050817433580. Its totient is φ = 700544955712.

The previous prime is 875681194643. The next prime is 875681194649. The reversal of 875681194645 is 546491186578.

875681194645 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 192020116401 + 683661078244 = 438201^2 + 826838^2 .

It is a cyclic number.

It is not a de Polignac number, because 875681194645 - 2¹ = 875681194643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875681194643) 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, 87568119460 + ... + 87568119469.

It is an arithmetic number, because the mean of its divisors is an integer number (262704358395).

Almost surely, 2^875681194645 is an apocalyptic number.

It is an amenable number.

875681194645 is a deficient number, since it is larger than the sum of its proper divisors (175136238935).

875681194645 is a wasteful number, since it uses less digits than its factorization.

875681194645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175136238934.

The product of its digits is 58060800, while the sum is 64.

The spelling of 875681194645 in words is "eight hundred seventy-five billion, six hundred eighty-one million, one hundred ninety-four thousand, six hundred forty-five".