3451065643 has 4 divisors (see below), whose sum is σ = 3451685008. Its totient is φ = 3450446280.

The previous prime is 3451065623. The next prime is 3451065661. The reversal of 3451065643 is 3465601543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3451065643 - 2⁹ = 3451065131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3451065623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301248 + ... + 312493.

It is an arithmetic number, because the mean of its divisors is an integer number (862921252).

Almost surely, 2^3451065643 is an apocalyptic number.

3451065643 is a deficient number, since it is larger than the sum of its proper divisors (619365).

3451065643 is an equidigital number, since it uses as much as digits as its factorization.

3451065643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619364.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 3451065643 is about 58745.7712775992. The cubic root of 3451065643 is about 1511.1853685128.

The spelling of 3451065643 in words is "three billion, four hundred fifty-one million, sixty-five thousand, six hundred forty-three".