61017668704287 has 6 divisors (see below), whose sum is σ = 88136632572872. Its totient is φ = 40678445802852.

The previous prime is 61017668704261. The next prime is 61017668704313. The reversal of 61017668704287 is 78240786671016.

61017668704287 is a `hidden beast` number, since 6 + 10 + 1 + 76 + 68 + 70 + 428 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (61017668704261) and next prime (61017668704313).

It is not a de Polignac number, because 61017668704287 - 2²² = 61017664509983 is a prime.

It is a super-2 number, since 2×61017668704287² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61017668708287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3389870483563 + ... + 3389870483580.

Almost surely, 2^{61017668704287} is an apocalyptic number.

61017668704287 is a deficient number, since it is larger than the sum of its proper divisors (27118963868585).

61017668704287 is a wasteful number, since it uses less digits than its factorization.

61017668704287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779740967149 (or 6779740967146 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 63.

The spelling of 61017668704287 in words is "sixty-one trillion, seventeen billion, six hundred sixty-eight million, seven hundred four thousand, two hundred eighty-seven".