3698882830921 has 2 divisors, whose sum is σ = 3698882830922. Its totient is φ = 3698882830920.

The previous prime is 3698882830919. The next prime is 3698882830963. The reversal of 3698882830921 is 1290382888963.

3698882830921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3587857258896 + 111025572025 = 1894164^2 + 333205^2 .

It is a cyclic number.

It is not a de Polignac number, because 3698882830921 - 2¹ = 3698882830919 is a prime.

Together with 3698882830919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3698882230921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849441415460 + 1849441415461.

It is an arithmetic number, because the mean of its divisors is an integer number (1849441415461).

Almost surely, 2^{3698882830921} is an apocalyptic number.

It is an amenable number.

3698882830921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3698882830921 is an equidigital number, since it uses as much as digits as its factorization.

3698882830921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71663616, while the sum is 67.

The spelling of 3698882830921 in words is "three trillion, six hundred ninety-eight billion, eight hundred eighty-two million, eight hundred thirty thousand, nine hundred twenty-one".