260687028869 has 2 divisors, whose sum is σ = 260687028870. Its totient is φ = 260687028868.

The previous prime is 260687028821. The next prime is 260687028929. The reversal of 260687028869 is 968820786062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191800202500 + 68886826369 = 437950^2 + 262463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260687028869 is a prime.

It is a super-2 number, since 2×260687028869² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260677028869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130343514434 + 130343514435.

It is an arithmetic number, because the mean of its divisors is an integer number (130343514435).

Almost surely, 2^260687028869 is an apocalyptic number.

It is an amenable number.

260687028869 is a deficient number, since it is larger than the sum of its proper divisors (1).

260687028869 is an equidigital number, since it uses as much as digits as its factorization.

260687028869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 260687028869 in words is "two hundred sixty billion, six hundred eighty-seven million, twenty-eight thousand, eight hundred sixty-nine".