260651278651 has 2 divisors, whose sum is σ = 260651278652. Its totient is φ = 260651278650.

The previous prime is 260651278621. The next prime is 260651278729. The reversal of 260651278651 is 156872156062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260651278651 - 2¹¹ = 260651276603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 260651278595 and 260651278604.

It is not a weakly prime, because it can be changed into another prime (260651278621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130325639325 + 130325639326.

It is an arithmetic number, because the mean of its divisors is an integer number (130325639326).

Almost surely, 2^260651278651 is an apocalyptic number.

260651278651 is a deficient number, since it is larger than the sum of its proper divisors (1).

260651278651 is an equidigital number, since it uses as much as digits as its factorization.

260651278651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 260651278651 in words is "two hundred sixty billion, six hundred fifty-one million, two hundred seventy-eight thousand, six hundred fifty-one".