3430476747721 has 2 divisors, whose sum is σ = 3430476747722. Its totient is φ = 3430476747720.

The previous prime is 3430476747697. The next prime is 3430476747767. The reversal of 3430476747721 is 1277476740343.

3430476747721 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., 3292047360000 + 138429387721 = 1814400^2 + 372061^2 .

It is a cyclic number.

It is not a de Polignac number, because 3430476747721 - 2¹⁵ = 3430476714953 is a prime.

It is not a weakly prime, because it can be changed into another prime (3430456747721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715238373860 + 1715238373861.

It is an arithmetic number, because the mean of its divisors is an integer number (1715238373861).

Almost surely, 2^{3430476747721} is an apocalyptic number.

It is an amenable number.

3430476747721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3430476747721 is an equidigital number, since it uses as much as digits as its factorization.

3430476747721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16595712, while the sum is 55.

The spelling of 3430476747721 in words is "three trillion, four hundred thirty billion, four hundred seventy-six million, seven hundred forty-seven thousand, seven hundred twenty-one".