261676064570527 has 8 divisors (see below), whose sum is σ = 261946675470672. Its totient is φ = 261405455976000.

The previous prime is 261676064570449. The next prime is 261676064570603. The reversal of 261676064570527 is 725075460676162.

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 261676064570527 - 2¹⁵ = 261676064537759 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 (261676064570027) 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, 316654777 + ... + 317480077.

It is an arithmetic number, because the mean of its divisors is an integer number (32743334433834).

Almost surely, 2^{261676064570527} is an apocalyptic number.

261676064570527 is a deficient number, since it is larger than the sum of its proper divisors (270610900145).

261676064570527 is an equidigital number, since it uses as much as digits as its factorization.

261676064570527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152809.

The product of its (nonzero) digits is 177811200, while the sum is 64.

The spelling of 261676064570527 in words is "two hundred sixty-one trillion, six hundred seventy-six billion, sixty-four million, five hundred seventy thousand, five hundred twenty-seven".