261535126276147 has 16 divisors (see below), whose sum is σ = 287368866408960. Its totient is φ = 236915696679552.

The previous prime is 261535126276129. The next prime is 261535126276163. The reversal of 261535126276147 is 741672621535162.

261535126276147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261535126276147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261535126276091 and 261535126276100.

It is not an unprimeable number, because it can be changed into a prime (261535126277147) 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, 102026823 + ... + 104558800.

It is an arithmetic number, because the mean of its divisors is an integer number (17960554150560).

Almost surely, 2^{261535126276147} is an apocalyptic number.

261535126276147 is a deficient number, since it is larger than the sum of its proper divisors (25833740132813).

261535126276147 is a wasteful number, since it uses less digits than its factorization.

261535126276147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206588562.

The product of its digits is 25401600, while the sum is 58.

The spelling of 261535126276147 in words is "two hundred sixty-one trillion, five hundred thirty-five billion, one hundred twenty-six million, two hundred seventy-six thousand, one hundred forty-seven".