561214612770461 has 6 divisors (see below), whose sum is σ = 607705764124410. Its totient is φ = 518044257941808.

The previous prime is 561214612770439. The next prime is 561214612770541. The reversal of 561214612770461 is 164077216412165.

It can be written as a sum of positive squares in 3 ways, for example, as 629910481561 + 560584702288900 = 793669^2 + 23676670^2 .

It is not a de Polignac number, because 561214612770461 - 2⁶ = 561214612770397 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 (561214612770961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1660398262466 + ... + 1660398262803.

It is an arithmetic number, because the mean of its divisors is an integer number (101284294020735).

Almost surely, 2^{561214612770461} is an apocalyptic number.

It is an amenable number.

561214612770461 is a deficient number, since it is larger than the sum of its proper divisors (46491151353949).

561214612770461 is a wasteful number, since it uses less digits than its factorization.

561214612770461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320796525295 (or 3320796525282 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 561214612770461 in words is "five hundred sixty-one trillion, two hundred fourteen billion, six hundred twelve million, seven hundred seventy thousand, four hundred sixty-one".