261323517362 has 8 divisors (see below), whose sum is σ = 393431716992. Its totient is φ = 130179611700.

The previous prime is 261323517331. The next prime is 261323517397. The reversal of 261323517362 is 263715323162.

261323517362 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×261323517362³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241072814 + ... + 241073897.

It is an arithmetic number, because the mean of its divisors is an integer number (49178964624).

Almost surely, 2^261323517362 is an apocalyptic number.

261323517362 is a deficient number, since it is larger than the sum of its proper divisors (132108199630).

261323517362 is a wasteful number, since it uses less digits than its factorization.

261323517362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482146984.

The product of its digits is 272160, while the sum is 41.

The spelling of 261323517362 in words is "two hundred sixty-one billion, three hundred twenty-three million, five hundred seventeen thousand, three hundred sixty-two".