260774953961 has 4 divisors (see below), whose sum is σ = 260787340500. Its totient is φ = 260762567424.

The previous prime is 260774953951. The next prime is 260774953969. The reversal of 260774953961 is 169359477062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116721306025 + 144053647936 = 341645^2 + 379544^2 .

It is a cyclic number.

It is not a de Polignac number, because 260774953961 - 2³⁰ = 259701212137 is a prime.

It is a super-2 number, since 2×260774953961² (a number of 24 digits) contains 22 as substring.

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 260774953961.

It is not an unprimeable number, because it can be changed into a prime (260774953969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6161636 + ... + 6203813.

It is an arithmetic number, because the mean of its divisors is an integer number (65196835125).

Almost surely, 2^260774953961 is an apocalyptic number.

It is an amenable number.

260774953961 is a deficient number, since it is larger than the sum of its proper divisors (12386539).

260774953961 is a wasteful number, since it uses less digits than its factorization.

260774953961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12386538.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 260774953961 in words is "two hundred sixty billion, seven hundred seventy-four million, nine hundred fifty-three thousand, nine hundred sixty-one".