261676061350847 has 8 divisors (see below), whose sum is σ = 307423624524240. Its totient is φ = 219588303231360.

The previous prime is 261676061350829. The next prime is 261676061350849. The reversal of 261676061350847 is 748053160676162.

It is a happy number.

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 261676061350847 - 2¹² = 261676061346751 is a prime.

It is a super-3 number, since 3×261676061350847³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 261676061350847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261676061350849) 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, 914951263322 + ... + 914951263607.

It is an arithmetic number, because the mean of its divisors is an integer number (38427953065530).

Almost surely, 2^{261676061350847} is an apocalyptic number.

261676061350847 is a deficient number, since it is larger than the sum of its proper divisors (45747563173393).

261676061350847 is a wasteful number, since it uses less digits than its factorization.

261676061350847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829902526953.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 261676061350847 in words is "two hundred sixty-one trillion, six hundred seventy-six billion, sixty-one million, three hundred fifty thousand, eight hundred forty-seven".