5456985813 has 6 divisors (see below), whose sum is σ = 7882312854. Its totient is φ = 3637990536.

The previous prime is 5456985803. The next prime is 5456985817. The reversal of 5456985813 is 3185896545.

5456985813 is a `hidden beast` number, since 5 + 4 + 56 + 9 + 8 + 581 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5451311889 + 5673924 = 73833^2 + 2382^2 .

It is not a de Polignac number, because 5456985813 - 2²⁶ = 5389876949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5456985813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5456985817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303165870 + ... + 303165887.

It is an arithmetic number, because the mean of its divisors is an integer number (1313718809).

Almost surely, 2^5456985813 is an apocalyptic number.

It is an amenable number.

5456985813 is a deficient number, since it is larger than the sum of its proper divisors (2425327041).

5456985813 is a wasteful number, since it uses less digits than its factorization.

5456985813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606331763 (or 606331760 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The square root of 5456985813 is about 73871.4140449470. The cubic root of 5456985813 is about 1760.5604504940.

The spelling of 5456985813 in words is "five billion, four hundred fifty-six million, nine hundred eighty-five thousand, eight hundred thirteen".