261848473 has 8 divisors (see below), whose sum is σ = 264750080. Its totient is φ = 258960240.

The previous prime is 261848441. The next prime is 261848479. The reversal of 261848473 is 374848162.

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 261848473 - 2⁵ = 261848441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261848479) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38923 + ... + 45151.

It is an arithmetic number, because the mean of its divisors is an integer number (33093760).

Almost surely, 2^261848473 is an apocalyptic number.

It is an amenable number.

261848473 is a deficient number, since it is larger than the sum of its proper divisors (2901607).

261848473 is a wasteful number, since it uses less digits than its factorization.

261848473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687.

The product of its digits is 258048, while the sum is 43.

The square root of 261848473 is about 16181.7326946159. The cubic root of 261848473 is about 639.7594090793.

The spelling of 261848473 in words is "two hundred sixty-one million, eight hundred forty-eight thousand, four hundred seventy-three".