2600326381 has 2 divisors, whose sum is σ = 2600326382. Its totient is φ = 2600326380.

The previous prime is 2600326369. The next prime is 2600326423. The reversal of 2600326381 is 1836230062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2546817156 + 53509225 = 50466^2 + 7315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600326381 - 2⁵ = 2600326349 is a prime.

It is a super-2 number, since 2×2600326381² = 13523394575449114322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2600326321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300163190 + 1300163191.

It is an arithmetic number, because the mean of its divisors is an integer number (1300163191).

Almost surely, 2^2600326381 is an apocalyptic number.

It is an amenable number.

2600326381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2600326381 is an equidigital number, since it uses as much as digits as its factorization.

2600326381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2600326381 is about 50993.3954645109. The cubic root of 2600326381 is about 1375.1264026605.

The spelling of 2600326381 in words is "two billion, six hundred million, three hundred twenty-six thousand, three hundred eighty-one".