261086062463 has 16 divisors (see below), whose sum is σ = 268439252256. Its totient is φ = 253780661760.

The previous prime is 261086062451. The next prime is 261086062469. The reversal of 261086062463 is 364260680162.

It is a cyclic number.

It is not a de Polignac number, because 261086062463 - 2³² = 256791095167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261086062469) 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, 32137520 + ... + 32145642.

It is an arithmetic number, because the mean of its divisors is an integer number (16777453266).

Almost surely, 2^261086062463 is an apocalyptic number.

261086062463 is a deficient number, since it is larger than the sum of its proper divisors (7353189793).

261086062463 is a wasteful number, since it uses less digits than its factorization.

261086062463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10954.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 261086062463 in words is "two hundred sixty-one billion, eighty-six million, sixty-two thousand, four hundred sixty-three".