1680582868 has 6 divisors (see below), whose sum is σ = 2941020026. Its totient is φ = 840291432.

The previous prime is 1680582853. The next prime is 1680582877. The reversal of 1680582868 is 8682850861.

It can be written as a sum of positive squares in only one way, i.e., 1321177104 + 359405764 = 36348^2 + 18958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210072855 + ... + 210072862.

Almost surely, 2^1680582868 is an apocalyptic number.

It is an amenable number.

1680582868 is a deficient number, since it is larger than the sum of its proper divisors (1260437158).

1680582868 is a wasteful number, since it uses less digits than its factorization.

1680582868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420145721 (or 420145719 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 52.

The square root of 1680582868 is about 40994.9127087740. The cubic root of 1680582868 is about 1188.9218556840.

The spelling of 1680582868 in words is "one billion, six hundred eighty million, five hundred eighty-two thousand, eight hundred sixty-eight".