261468485 has 16 divisors (see below), whose sum is σ = 328440960. Its totient is φ = 199446720.

The previous prime is 261468461. The next prime is 261468491. The reversal of 261468485 is 584864162.

It is a happy number.

It is not a de Polignac number, because 261468485 - 2⁶ = 261468421 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34631 + ... + 41499.

It is an arithmetic number, because the mean of its divisors is an integer number (20527560).

Almost surely, 2^261468485 is an apocalyptic number.

It is an amenable number.

261468485 is a deficient number, since it is larger than the sum of its proper divisors (66972475).

261468485 is a wasteful number, since it uses less digits than its factorization.

261468485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7228.

The product of its digits is 368640, while the sum is 44.

The square root of 261468485 is about 16169.9871675892. The cubic root of 261468485 is about 639.4497916067.

The spelling of 261468485 in words is "two hundred sixty-one million, four hundred sixty-eight thousand, four hundred eighty-five".