4909287785473 has 4 divisors (see below), whose sum is σ = 4909641570900. Its totient is φ = 4908934000048.

The previous prime is 4909287785459. The next prime is 4909287785539. The reversal of 4909287785473 is 3745877829094.

4909287785473 is digitally balanced in base 3, 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 1797390686224 + 3111897099249 = 1340668^2 + 1764057^2 .

It is a cyclic number.

It is not a de Polignac number, because 4909287785473 - 2³⁷ = 4771848832001 is a prime.

It is a super-2 number, since 2×4909287785473² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4909287785396 and 4909287785405.

It is not an unprimeable number, because it can be changed into a prime (4909287782473) 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, 176871898 + ... + 176899651.

It is an arithmetic number, because the mean of its divisors is an integer number (1227410392725).

Almost surely, 2^{4909287785473} is an apocalyptic number.

It is an amenable number.

4909287785473 is a deficient number, since it is larger than the sum of its proper divisors (353785427).

4909287785473 is a wasteful number, since it uses less digits than its factorization.

4909287785473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353785426.

The product of its (nonzero) digits is 853493760, while the sum is 73.

The spelling of 4909287785473 in words is "four trillion, nine hundred nine billion, two hundred eighty-seven million, seven hundred eighty-five thousand, four hundred seventy-three".