3678621701 has 2 divisors, whose sum is σ = 3678621702. Its totient is φ = 3678621700.

The previous prime is 3678621691. The next prime is 3678621703. The reversal of 3678621701 is 1071268763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3408808225 + 269813476 = 58385^2 + 16426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3678621701 is a prime.

Together with 3678621703, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3678621703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839310850 + 1839310851.

It is an arithmetic number, because the mean of its divisors is an integer number (1839310851).

Almost surely, 2^3678621701 is an apocalyptic number.

It is an amenable number.

3678621701 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678621701 is an equidigital number, since it uses as much as digits as its factorization.

3678621701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 3678621701 is about 60651.6421954097. The cubic root of 3678621701 is about 1543.6957536141.

The spelling of 3678621701 in words is "three billion, six hundred seventy-eight million, six hundred twenty-one thousand, seven hundred one".