260402259979 has 2 divisors, whose sum is σ = 260402259980. Its totient is φ = 260402259978.

The previous prime is 260402259977. The next prime is 260402260009. The reversal of 260402259979 is 979952204062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260402259979 - 2¹ = 260402259977 is a prime.

Together with 260402259977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (260402259977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130201129989 + 130201129990.

It is an arithmetic number, because the mean of its divisors is an integer number (130201129990).

Almost surely, 2^260402259979 is an apocalyptic number.

260402259979 is a deficient number, since it is larger than the sum of its proper divisors (1).

260402259979 is an equidigital number, since it uses as much as digits as its factorization.

260402259979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 260402259979 in words is "two hundred sixty billion, four hundred two million, two hundred fifty-nine thousand, nine hundred seventy-nine".