61704261124565 has 16 divisors (see below), whose sum is σ = 74775057022848. Its totient is φ = 48876921567936.

The previous prime is 61704261124447. The next prime is 61704261124661. The reversal of 61704261124565 is 56542116240716.

It is a cyclic number.

It is not a de Polignac number, because 61704261124565 - 2¹⁰ = 61704261123541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5375114 + ... + 12341003.

It is an arithmetic number, because the mean of its divisors is an integer number (4673441063928).

Almost surely, 2^{61704261124565} is an apocalyptic number.

It is an amenable number.

61704261124565 is a deficient number, since it is larger than the sum of its proper divisors (13070795898283).

61704261124565 is a wasteful number, since it uses less digits than its factorization.

61704261124565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17722988.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 61704261124565 in words is "sixty-one trillion, seven hundred four billion, two hundred sixty-one million, one hundred twenty-four thousand, five hundred sixty-five".