261110870 has 32 divisors (see below), whose sum is σ = 477122400. Its totient is φ = 102871296.

The previous prime is 261110869. The next prime is 261110893. The reversal of 261110870 is 78011162.

261110870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352961 + ... + 353699.

It is an arithmetic number, because the mean of its divisors is an integer number (14910075).

Almost surely, 2^261110870 is an apocalyptic number.

261110870 is a deficient number, since it is larger than the sum of its proper divisors (216011530).

261110870 is a wasteful number, since it uses less digits than its factorization.

261110870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 261110870 is about 16158.9253974390. The cubic root of 261110870 is about 639.1581297243.

The spelling of 261110870 in words is "two hundred sixty-one million, one hundred ten thousand, eight hundred seventy".