1646140627 has 2 divisors, whose sum is σ = 1646140628. Its totient is φ = 1646140626.

The previous prime is 1646140607. The next prime is 1646140631. The reversal of 1646140627 is 7260416461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1646140627 - 2¹¹ = 1646138579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1646140607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 823070313 + 823070314.

It is an arithmetic number, because the mean of its divisors is an integer number (823070314).

Almost surely, 2^1646140627 is an apocalyptic number.

1646140627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1646140627 is an equidigital number, since it uses as much as digits as its factorization.

1646140627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1646140627 is about 40572.6586138991. The cubic root of 1646140627 is about 1180.7437203256.

The spelling of 1646140627 in words is "one billion, six hundred forty-six million, one hundred forty thousand, six hundred twenty-seven".