261704141077 has 8 divisors (see below), whose sum is σ = 270155077632. Its totient is φ = 253253758800.

The previous prime is 261704141053. The next prime is 261704141093. The reversal of 261704141077 is 770141407162.

261704141077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 261704141077 - 2³¹ = 259556657429 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 (261704147077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959127 + ... + 1201387.

It is an arithmetic number, because the mean of its divisors is an integer number (33769384704).

Almost surely, 2^261704141077 is an apocalyptic number.

It is an amenable number.

261704141077 is a deficient number, since it is larger than the sum of its proper divisors (8450936555).

261704141077 is a wasteful number, since it uses less digits than its factorization.

261704141077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277139.

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 261704141077 in words is "two hundred sixty-one billion, seven hundred four million, one hundred forty-one thousand, seventy-seven".