6674609421 has 6 divisors (see below), whose sum is σ = 9641102510. Its totient is φ = 4449739608.

The previous prime is 6674609419. The next prime is 6674609467. The reversal of 6674609421 is 1249064766.

It can be written as a sum of positive squares in only one way, i.e., 6548855625 + 125753796 = 80925^2 + 11214^2 .

It is not a de Polignac number, because 6674609421 - 2¹ = 6674609419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6674609471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370811626 + ... + 370811643.

Almost surely, 2^6674609421 is an apocalyptic number.

It is an amenable number.

6674609421 is a deficient number, since it is larger than the sum of its proper divisors (2966493089).

6674609421 is a wasteful number, since it uses less digits than its factorization.

6674609421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741623275 (or 741623272 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 6674609421 is about 81698.2828522118. The cubic root of 6674609421 is about 1882.8192029207.

The spelling of 6674609421 in words is "six billion, six hundred seventy-four million, six hundred nine thousand, four hundred twenty-one".