1682645668 has 24 divisors (see below), whose sum is σ = 3213362880. Its totient is φ = 764591520.

The previous prime is 1682645647. The next prime is 1682645717. The reversal of 1682645668 is 8665462861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262105 + ... + 268447.

It is an arithmetic number, because the mean of its divisors is an integer number (133890120).

Almost surely, 2^1682645668 is an apocalyptic number.

It is an amenable number.

1682645668 is a deficient number, since it is larger than the sum of its proper divisors (1530717212).

1682645668 is a wasteful number, since it uses less digits than its factorization.

1682645668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12387 (or 12385 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 1682645668 is about 41020.0642125290. The cubic root of 1682645668 is about 1189.4080967587.

The spelling of 1682645668 in words is "one billion, six hundred eighty-two million, six hundred forty-five thousand, six hundred sixty-eight".