261341042246 has 4 divisors (see below), whose sum is σ = 392011563372. Its totient is φ = 130670521122.

The previous prime is 261341042203. The next prime is 261341042267. The reversal of 261341042246 is 642240143162.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65335260560 + ... + 65335260563.

It is an arithmetic number, because the mean of its divisors is an integer number (98002890843).

Almost surely, 2^261341042246 is an apocalyptic number.

261341042246 is a deficient number, since it is larger than the sum of its proper divisors (130670521126).

261341042246 is a wasteful number, since it uses less digits than its factorization.

261341042246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130670521125.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 261341042246 in words is "two hundred sixty-one billion, three hundred forty-one million, forty-two thousand, two hundred forty-six".