261341042262 has 128 divisors (see below), whose sum is σ = 622088294400. Its totient is φ = 72576000000.

The previous prime is 261341042203. The next prime is 261341042267. The reversal of 261341042262 is 262240143162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261341042267) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1667262 + ... + 1817262.

It is an arithmetic number, because the mean of its divisors is an integer number (4860064800).

Almost surely, 2^261341042262 is an apocalyptic number.

261341042262 is an abundant number, since it is smaller than the sum of its proper divisors (360747252138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261341042262 is a wasteful number, since it uses less digits than its factorization.

261341042262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150102.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 261341042262 in words is "two hundred sixty-one billion, three hundred forty-one million, forty-two thousand, two hundred sixty-two".