261124209295 has 8 divisors (see below), whose sum is σ = 313352292096. Its totient is φ = 208897206816.

The previous prime is 261124209271. The next prime is 261124209317. The reversal of 261124209295 is 592902421162.

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

It is a cyclic number.

It is not a de Polignac number, because 261124209295 - 2¹⁵ = 261124176527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423709 + ... + 837721.

It is an arithmetic number, because the mean of its divisors is an integer number (39169036512).

Almost surely, 2^261124209295 is an apocalyptic number.

261124209295 is a deficient number, since it is larger than the sum of its proper divisors (52228082801).

261124209295 is a wasteful number, since it uses less digits than its factorization.

261124209295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540161.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 261124209295 in words is "two hundred sixty-one billion, one hundred twenty-four million, two hundred nine thousand, two hundred ninety-five".