261040533463411 has 16 divisors (see below), whose sum is σ = 281217013529760. Its totient is φ = 240877839974400.

The previous prime is 261040533463321. The next prime is 261040533463427. The reversal of 261040533463411 is 114364335040162.

It is a cyclic number.

It is not a de Polignac number, because 261040533463411 - 2¹¹ = 261040533461363 is a prime.

It is a super-2 number, since 2×261040533463411² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261040533463711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685082995 + ... + 685463923.

It is an arithmetic number, because the mean of its divisors is an integer number (17576063345610).

Almost surely, 2^{261040533463411} is an apocalyptic number.

261040533463411 is a deficient number, since it is larger than the sum of its proper divisors (20176480066349).

261040533463411 is a wasteful number, since it uses less digits than its factorization.

261040533463411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398886.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 261040533463411 in words is "two hundred sixty-one trillion, forty billion, five hundred thirty-three million, four hundred sixty-three thousand, four hundred eleven".