1681804976 has 10 divisors (see below), whose sum is σ = 3258497172. Its totient is φ = 840902480.

The previous prime is 1681804973. The next prime is 1681804979. The reversal of 1681804976 is 6794081861.

It is an interprime number because it is at equal distance from previous prime (1681804973) and next prime (1681804979).

It is not an unprimeable number, because it can be changed into a prime (1681804973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52556390 + ... + 52556421.

Almost surely, 2^1681804976 is an apocalyptic number.

1681804976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1681804976 is a deficient number, since it is larger than the sum of its proper divisors (1576692196).

1681804976 is a wasteful number, since it uses less digits than its factorization.

1681804976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105112819 (or 105112813 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1681804976 is about 41009.8156055352. The cubic root of 1681804976 is about 1189.2099777159.

The spelling of 1681804976 in words is "one billion, six hundred eighty-one million, eight hundred four thousand, nine hundred seventy-six".