261422562506246 has 8 divisors (see below), whose sum is σ = 397986587696280. Its totient is φ = 128760366607488.

The previous prime is 261422562506221. The next prime is 261422562506263. The reversal of 261422562506246 is 642605265224162.

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

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 3 ways as a sum of consecutive naturals, for example, 975457322651 + ... + 975457322918.

It is an arithmetic number, because the mean of its divisors is an integer number (49748323462035).

Almost surely, 2^{261422562506246} is an apocalyptic number.

261422562506246 is a deficient number, since it is larger than the sum of its proper divisors (136564025190034).

261422562506246 is a wasteful number, since it uses less digits than its factorization.

261422562506246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950914645638.

The product of its (nonzero) digits is 16588800, while the sum is 53.

The spelling of 261422562506246 in words is "two hundred sixty-one trillion, four hundred twenty-two billion, five hundred sixty-two million, five hundred six thousand, two hundred forty-six".