261675142730473 has 8 divisors (see below), whose sum is σ = 261878328451496. Its totient is φ = 261471964723200.

The previous prime is 261675142730459. The next prime is 261675142730483. The reversal of 261675142730473 is 374037241576162.

It can be written as a sum of positive squares in 4 ways, for example, as 112102927609689 + 149572215120784 = 10587867^2 + 12229972^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261675142730473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261675142730483) 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, 66897265 + ... + 70700737.

It is an arithmetic number, because the mean of its divisors is an integer number (32734791056437).

Almost surely, 2^{261675142730473} is an apocalyptic number.

It is an amenable number.

261675142730473 is a deficient number, since it is larger than the sum of its proper divisors (203185721023).

261675142730473 is a wasteful number, since it uses less digits than its factorization.

261675142730473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856875.

The product of its (nonzero) digits is 35562240, while the sum is 58.

The spelling of 261675142730473 in words is "two hundred sixty-one trillion, six hundred seventy-five billion, one hundred forty-two million, seven hundred thirty thousand, four hundred seventy-three".