261093427750 has 16 divisors (see below), whose sum is σ = 488766897216. Its totient is φ = 104437371000.

The previous prime is 261093427739. The next prime is 261093427769. The reversal of 261093427750 is 57724390162.

It is a self number, because there is not a number n which added to its sum of digits gives 261093427750.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522186606 + ... + 522187105.

It is an arithmetic number, because the mean of its divisors is an integer number (30547931076).

Almost surely, 2^261093427750 is an apocalyptic number.

261093427750 is a deficient number, since it is larger than the sum of its proper divisors (227673469466).

261093427750 is a wasteful number, since it uses less digits than its factorization.

261093427750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044373728 (or 1044373718 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 261093427750 in words is "two hundred sixty-one billion, ninety-three million, four hundred twenty-seven thousand, seven hundred fifty".