3670340406721 has 2 divisors, whose sum is σ = 3670340406722. Its totient is φ = 3670340406720.

The previous prime is 3670340406661. The next prime is 3670340406763. The reversal of 3670340406721 is 1276040430763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3004810766721 + 665529640000 = 1733439^2 + 815800^2 .

It is a cyclic number.

It is not a de Polignac number, because 3670340406721 - 2³³ = 3661750472129 is a prime.

It is a super-3 number, since 3×3670340406721³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3670340496721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1835170203360 + 1835170203361.

It is an arithmetic number, because the mean of its divisors is an integer number (1835170203361).

Almost surely, 2^{3670340406721} is an apocalyptic number.

It is an amenable number.

3670340406721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3670340406721 is an equidigital number, since it uses as much as digits as its factorization.

3670340406721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 3670340406721 in words is "three trillion, six hundred seventy billion, three hundred forty million, four hundred six thousand, seven hundred twenty-one".