261134411610437 has 8 divisors (see below), whose sum is σ = 272576294147520. Its totient is φ = 249699880112320.

The previous prime is 261134411610421. The next prime is 261134411610511. The reversal of 261134411610437 is 734016114431162.

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 261134411610437 - 2⁴ = 261134411610421 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 (261134411690437) 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, 1837687139 + ... + 1837829232.

It is an arithmetic number, because the mean of its divisors is an integer number (34072036768440).

Almost surely, 2^{261134411610437} is an apocalyptic number.

It is an amenable number.

261134411610437 is a deficient number, since it is larger than the sum of its proper divisors (11441882537083).

261134411610437 is a wasteful number, since it uses less digits than its factorization.

261134411610437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675519483.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 261134411610437 in words is "two hundred sixty-one trillion, one hundred thirty-four billion, four hundred eleven million, six hundred ten thousand, four hundred thirty-seven".