261430467417705 has 32 divisors (see below), whose sum is σ = 418434422491008. Its totient is φ = 139381032960000.

The previous prime is 261430467417643. The next prime is 261430467417739. The reversal of 261430467417705 is 507714764034162.

It is not a de Polignac number, because 261430467417705 - 2⁹ = 261430467417193 is a prime.

It is a super-2 number, since 2×261430467417705² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500087017 + ... + 500609513.

It is an arithmetic number, because the mean of its divisors is an integer number (13076075702844).

Almost surely, 2^{261430467417705} is an apocalyptic number.

It is an amenable number.

261430467417705 is a deficient number, since it is larger than the sum of its proper divisors (157003955073303).

261430467417705 is a wasteful number, since it uses less digits than its factorization.

261430467417705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534057.

The product of its (nonzero) digits is 23708160, while the sum is 57.

The spelling of 261430467417705 in words is "two hundred sixty-one trillion, four hundred thirty billion, four hundred sixty-seven million, four hundred seventeen thousand, seven hundred five".