261063533435 has 8 divisors (see below), whose sum is σ = 314899434240. Its totient is φ = 207768697344.

The previous prime is 261063533389. The next prime is 261063533503. The reversal of 261063533435 is 534335360162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261063533435 - 2²² = 261059339131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261063533392 and 261063533401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135265115 + ... + 135267044.

It is an arithmetic number, because the mean of its divisors is an integer number (39362429280).

Almost surely, 2^261063533435 is an apocalyptic number.

261063533435 is a deficient number, since it is larger than the sum of its proper divisors (53835900805).

261063533435 is a wasteful number, since it uses less digits than its factorization.

261063533435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270532357.

The product of its (nonzero) digits is 583200, while the sum is 41.

Adding to 261063533435 its reverse (534335360162), we get a palindrome (795398893597).

The spelling of 261063533435 in words is "two hundred sixty-one billion, sixty-three million, five hundred thirty-three thousand, four hundred thirty-five".