2636340673 has 2 divisors, whose sum is σ = 2636340674. Its totient is φ = 2636340672.

The previous prime is 2636340643. The next prime is 2636340701. The reversal of 2636340673 is 3760436362.

2636340673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2427335824 + 209004849 = 49268^2 + 14457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2636340673 is a prime.

It is a super-2 number, since 2×2636340673² = 13900584288228185858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2636340643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318170336 + 1318170337.

It is an arithmetic number, because the mean of its divisors is an integer number (1318170337).

Almost surely, 2^2636340673 is an apocalyptic number.

It is an amenable number.

2636340673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2636340673 is an equidigital number, since it uses as much as digits as its factorization.

2636340673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 40.

The square root of 2636340673 is about 51345.3081887722. The cubic root of 2636340673 is about 1381.4457775413.

The spelling of 2636340673 in words is "two billion, six hundred thirty-six million, three hundred forty thousand, six hundred seventy-three".