261570467743 has 8 divisors (see below), whose sum is σ = 283358087600. Its totient is φ = 241449660504.

The previous prime is 261570467731. The next prime is 261570467773. The reversal of 261570467743 is 347764075162.

It is not a de Polignac number, because 261570467743 - 2⁹ = 261570467231 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 (261570467723) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 59526813 + ... + 59531206.

It is an arithmetic number, because the mean of its divisors is an integer number (35419760950).

Almost surely, 2^261570467743 is an apocalyptic number.

261570467743 is a deficient number, since it is larger than the sum of its proper divisors (21787619857).

261570467743 is an equidigital number, since it uses as much as digits as its factorization.

261570467743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119058058 (or 119058032 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 261570467743 in words is "two hundred sixty-one billion, five hundred seventy million, four hundred sixty-seven thousand, seven hundred forty-three".