261044422274 has 32 divisors (see below), whose sum is σ = 408341165760. Its totient is φ = 125048169792.

The previous prime is 261044422271. The next prime is 261044422297. The reversal of 261044422274 is 472224440162.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (261044422271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31113272 + ... + 31121660.

It is an arithmetic number, because the mean of its divisors is an integer number (12760661430).

Almost surely, 2^261044422274 is an apocalyptic number.

261044422274 is a deficient number, since it is larger than the sum of its proper divisors (147296743486).

261044422274 is a wasteful number, since it uses less digits than its factorization.

261044422274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15314.

The product of its (nonzero) digits is 172032, while the sum is 38.

The spelling of 261044422274 in words is "two hundred sixty-one billion, forty-four million, four hundred twenty-two thousand, two hundred seventy-four".