261562014411443 has 16 divisors (see below), whose sum is σ = 270677228236800. Its totient is φ = 252489920135040.

The previous prime is 261562014411409. The next prime is 261562014411457. The reversal of 261562014411443 is 344114410265162.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261562014411443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261562014411394 and 261562014411403.

It is not an unprimeable number, because it can be changed into a prime (261562014411403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14268230 + ... + 26957492.

It is an arithmetic number, because the mean of its divisors is an integer number (16917326764800).

Almost surely, 2^{261562014411443} is an apocalyptic number.

261562014411443 is a deficient number, since it is larger than the sum of its proper divisors (9115213825357).

261562014411443 is a wasteful number, since it uses less digits than its factorization.

261562014411443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690962.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 261562014411443 in words is "two hundred sixty-one trillion, five hundred sixty-two billion, fourteen million, four hundred eleven thousand, four hundred forty-three".