1680180967 has 2 divisors, whose sum is σ = 1680180968. Its totient is φ = 1680180966.

The previous prime is 1680180961. The next prime is 1680181003. The reversal of 1680180967 is 7690810861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1680180967 - 2³ = 1680180959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1680180961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840090483 + 840090484.

It is an arithmetic number, because the mean of its divisors is an integer number (840090484).

Almost surely, 2^1680180967 is an apocalyptic number.

1680180967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680180967 is an equidigital number, since it uses as much as digits as its factorization.

1680180967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 1680180967 is about 40990.0105757488. The cubic root of 1680180967 is about 1188.8270736917.

The spelling of 1680180967 in words is "one billion, six hundred eighty million, one hundred eighty thousand, nine hundred sixty-seven".