261968346050 has 24 divisors (see below), whose sum is σ = 495249016692. Its totient is φ = 103069512000.

The previous prime is 261968346049. The next prime is 261968346061. The reversal of 261968346050 is 50643869162.

261968346050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 49084845601 + 212883500449 = 221551^2 + 461393^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 261968346050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42942581 + ... + 42948680.

Almost surely, 2^261968346050 is an apocalyptic number.

261968346050 is a deficient number, since it is larger than the sum of its proper divisors (233280670642).

261968346050 is a wasteful number, since it uses less digits than its factorization.

261968346050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85891334 (or 85891329 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 261968346050 in words is "two hundred sixty-one billion, nine hundred sixty-eight million, three hundred forty-six thousand, fifty".