261432660004027 has 8 divisors (see below), whose sum is σ = 262482097041360. Its totient is φ = 260384292187680.

The previous prime is 261432660004013. The next prime is 261432660004067. The reversal of 261432660004027 is 720400066234162.

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 261432660004027 - 2¹¹ = 261432660001979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261432660004067) 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, 266815249 + ... + 267793282.

It is an arithmetic number, because the mean of its divisors is an integer number (32810262130170).

Almost surely, 2^{261432660004027} is an apocalyptic number.

261432660004027 is a deficient number, since it is larger than the sum of its proper divisors (1049437037333).

261432660004027 is a wasteful number, since it uses less digits than its factorization.

261432660004027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534610493.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 261432660004027 in words is "two hundred sixty-one trillion, four hundred thirty-two billion, six hundred sixty million, four thousand, twenty-seven".