261006770 has 8 divisors (see below), whose sum is σ = 469812204. Its totient is φ = 104402704.

The previous prime is 261006719. The next prime is 261006773. The reversal of 261006770 is 77600162.

261006770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 209583529 + 51423241 = 14477^2 + 7171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (261006773) 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, 13050329 + ... + 13050348.

Almost surely, 2^261006770 is an apocalyptic number.

261006770 is a deficient number, since it is larger than the sum of its proper divisors (208805434).

261006770 is a wasteful number, since it uses less digits than its factorization.

261006770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26100684.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 261006770 is about 16155.7039462847. The cubic root of 261006770 is about 639.0731783196.

The spelling of 261006770 in words is "two hundred sixty-one million, six thousand, seven hundred seventy".