613065762261 has 16 divisors (see below), whose sum is σ = 908314196800. Its totient is φ = 408679627824.

The previous prime is 613065762251. The next prime is 613065762263. The reversal of 613065762261 is 162267560316.

613065762261 is a `hidden beast` number, since 6 + 13 + 0 + 6 + 5 + 7 + 622 + 6 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-613065762261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613065762263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490966 + ... + 1211271.

It is an arithmetic number, because the mean of its divisors is an integer number (56769637300).

Almost surely, 2^613065762261 is an apocalyptic number.

It is an amenable number.

613065762261 is a deficient number, since it is larger than the sum of its proper divisors (295248434539).

613065762261 is a wasteful number, since it uses less digits than its factorization.

613065762261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715585 (or 1715579 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 613065762261 in words is "six hundred thirteen billion, sixty-five million, seven hundred sixty-two thousand, two hundred sixty-one".