261422520234335 has 8 divisors (see below), whose sum is σ = 313709134454496. Its totient is φ = 209136609405280.

The previous prime is 261422520234331. The next prime is 261422520234341. The reversal of 261422520234335 is 533432025224162.

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

It is not a de Polignac number, because 261422520234335 - 2² = 261422520234331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261422520234331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175029776 + ... + 176517045.

It is an arithmetic number, because the mean of its divisors is an integer number (39213641806812).

Almost surely, 2^{261422520234335} is an apocalyptic number.

261422520234335 is a deficient number, since it is larger than the sum of its proper divisors (52286614220161).

261422520234335 is a wasteful number, since it uses less digits than its factorization.

261422520234335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351695553.

The product of its (nonzero) digits is 2073600, while the sum is 44.

Adding to 261422520234335 its reverse (533432025224162), we get a palindrome (794854545458497).

The spelling of 261422520234335 in words is "two hundred sixty-one trillion, four hundred twenty-two billion, five hundred twenty million, two hundred thirty-four thousand, three hundred thirty-five".