261703734124417 has 8 divisors (see below), whose sum is σ = 282098434006760. Its totient is φ = 241346697586560.

The previous prime is 261703734124403. The next prime is 261703734124439. The reversal of 261703734124417 is 714421437307162.

261703734124417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22020203819761 + 239683530304656 = 4692569^2 + 15481716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261703734124417 - 2²⁷ = 261703599906689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261703734124477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9415821684 + ... + 9415849477.

It is an arithmetic number, because the mean of its divisors is an integer number (35262304250845).

Almost surely, 2^{261703734124417} is an apocalyptic number.

It is an amenable number.

261703734124417 is a deficient number, since it is larger than the sum of its proper divisors (20394699882343).

261703734124417 is a wasteful number, since it uses less digits than its factorization.

261703734124417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18831672243.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 261703734124417 in words is "two hundred sixty-one trillion, seven hundred three billion, seven hundred thirty-four million, one hundred twenty-four thousand, four hundred seventeen".