3676385838421 has 2 divisors, whose sum is σ = 3676385838422. Its totient is φ = 3676385838420.

The previous prime is 3676385838353. The next prime is 3676385838491. The reversal of 3676385838421 is 1248385836763.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3621355716196 + 55030122225 = 1902986^2 + 234585^2 .

It is a cyclic number.

It is not a de Polignac number, because 3676385838421 - 2²⁹ = 3675848967509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3676385838491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1838192919210 + 1838192919211.

It is an arithmetic number, because the mean of its divisors is an integer number (1838192919211).

Almost surely, 2^{3676385838421} is an apocalyptic number.

It is an amenable number.

3676385838421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3676385838421 is an equidigital number, since it uses as much as digits as its factorization.

3676385838421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139345920, while the sum is 64.

The spelling of 3676385838421 in words is "three trillion, six hundred seventy-six billion, three hundred eighty-five million, eight hundred thirty-eight thousand, four hundred twenty-one".