261602404706270 has 16 divisors (see below), whose sum is σ = 470976894776448. Its totient is φ = 104620391592480.

The previous prime is 261602404706267. The next prime is 261602404706303. The reversal of 261602404706270 is 72607404206162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2571232841 + ... + 2571334580.

It is an arithmetic number, because the mean of its divisors is an integer number (29436055923528).

Almost surely, 2^{261602404706270} is an apocalyptic number.

261602404706270 is a deficient number, since it is larger than the sum of its proper divisors (209374490070178).

261602404706270 is a wasteful number, since it uses less digits than its factorization.

261602404706270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142572515.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 261602404706270 in words is "two hundred sixty-one trillion, six hundred two billion, four hundred four million, seven hundred six thousand, two hundred seventy".