261723132043183 has 8 divisors (see below), whose sum is σ = 261864562191200. Its totient is φ = 261581704177248.

The previous prime is 261723132043181. The next prime is 261723132043187. The reversal of 261723132043183 is 381340231327162.

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 261723132043183 - 2¹ = 261723132043181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261723132043181) 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, 261261685 + ... + 262261537.

It is an arithmetic number, because the mean of its divisors is an integer number (32733070273900).

Almost surely, 2^{261723132043183} is an apocalyptic number.

261723132043183 is a deficient number, since it is larger than the sum of its proper divisors (141430148017).

261723132043183 is a wasteful number, since it uses less digits than its factorization.

261723132043183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141041.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 261723132043183 in words is "two hundred sixty-one trillion, seven hundred twenty-three billion, one hundred thirty-two million, forty-three thousand, one hundred eighty-three".