4613803817661 has 6 divisors (see below), whose sum is σ = 6664383292190. Its totient is φ = 3075869211768.

The previous prime is 4613803817647. The next prime is 4613803817669. The reversal of 4613803817661 is 1667183083164.

4613803817661 is a `hidden beast` number, since 4 + 6 + 1 + 380 + 38 + 176 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3589437165561 + 1024366652100 = 1894581^2 + 1012110^2 .

It is not a de Polignac number, because 4613803817661 - 2¹³ = 4613803809469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4613803817598 and 4613803817607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4613803817669) 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, 256322434306 + ... + 256322434323.

Almost surely, 2^{4613803817661} is an apocalyptic number.

It is an amenable number.

4613803817661 is a deficient number, since it is larger than the sum of its proper divisors (2050579474529).

4613803817661 is a wasteful number, since it uses less digits than its factorization.

4613803817661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512644868635 (or 512644868632 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 4613803817661 in words is "four trillion, six hundred thirteen billion, eight hundred three million, eight hundred seventeen thousand, six hundred sixty-one".