904858322645 has 4 divisors (see below), whose sum is σ = 1085829987180. Its totient is φ = 723886658112.

The previous prime is 904858322597. The next prime is 904858322647. The reversal of 904858322645 is 546223858409.

904858322645 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, and also an emirpimes, since its reverse is a distinct semiprime: 546223858409 = 523 ⋅1044405083.

It can be written as a sum of positive squares in 2 ways, for example, as 182019983044 + 722838339601 = 426638^2 + 850199^2 .

It is a cyclic number.

It is not a de Polignac number, because 904858322645 - 2⁶ = 904858322581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904858322647) 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, 90485832260 + ... + 90485832269.

It is an arithmetic number, because the mean of its divisors is an integer number (271457496795).

Almost surely, 2^904858322645 is an apocalyptic number.

It is an amenable number.

904858322645 is a deficient number, since it is larger than the sum of its proper divisors (180971664535).

904858322645 is a wasteful number, since it uses less digits than its factorization.

904858322645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180971664534.

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 904858322645 in words is "nine hundred four billion, eight hundred fifty-eight million, three hundred twenty-two thousand, six hundred forty-five".