1670425009 has 16 divisors (see below), whose sum is σ = 1861761024. Its totient is φ = 1485827200.

The previous prime is 1670425007. The next prime is 1670425019. The reversal of 1670425009 is 9005240761.

It is not a de Polignac number, because 1670425009 - 2¹ = 1670425007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670425007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219549 + ... + 227029.

It is an arithmetic number, because the mean of its divisors is an integer number (116360064).

Almost surely, 2^1670425009 is an apocalyptic number.

It is an amenable number.

1670425009 is a deficient number, since it is larger than the sum of its proper divisors (191336015).

1670425009 is a wasteful number, since it uses less digits than its factorization.

1670425009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1670425009 is about 40870.8332310463. The cubic root of 1670425009 is about 1186.5216339587.

The spelling of 1670425009 in words is "one billion, six hundred seventy million, four hundred twenty-five thousand, nine".