261063606273007 has 16 divisors (see below), whose sum is σ = 264439678397440. Its totient is φ = 257710310208000.

The previous prime is 261063606272983. The next prime is 261063606273103. The reversal of 261063606273007 is 700372606360162.

It is a cyclic number.

It is not a de Polignac number, because 261063606273007 - 2⁴⁷ = 120326117917679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261063606276007) 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, 49845532 + ... + 54833422.

It is an arithmetic number, because the mean of its divisors is an integer number (16527479899840).

Almost surely, 2^{261063606273007} is an apocalyptic number.

261063606273007 is a deficient number, since it is larger than the sum of its proper divisors (3376072124433).

261063606273007 is a wasteful number, since it uses less digits than its factorization.

261063606273007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990174.

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 261063606273007 in words is "two hundred sixty-one trillion, sixty-three billion, six hundred six million, two hundred seventy-three thousand, seven".