260640522613463 has 4 divisors (see below), whose sum is σ = 266186065647840. Its totient is φ = 255094979579088.

The previous prime is 260640522613417. The next prime is 260640522613519. The reversal of 260640522613463 is 364316225046062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260640522613463 - 2¹² = 260640522609367 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 (260640522603463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2772771517118 + ... + 2772771517211.

It is an arithmetic number, because the mean of its divisors is an integer number (66546516411960).

Almost surely, 2^{260640522613463} is an apocalyptic number.

260640522613463 is a deficient number, since it is larger than the sum of its proper divisors (5545543034377).

260640522613463 is an equidigital number, since it uses as much as digits as its factorization.

260640522613463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545543034376.

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 260640522613463 in words is "two hundred sixty trillion, six hundred forty billion, five hundred twenty-two million, six hundred thirteen thousand, four hundred sixty-three".