1681612802 has 16 divisors (see below), whose sum is σ = 2573026560. Its totient is φ = 824093088.

The previous prime is 1681612799. The next prime is 1681612837. The reversal of 1681612802 is 2082161861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17198 + ... + 60489.

It is an arithmetic number, because the mean of its divisors is an integer number (160814160).

Almost surely, 2^1681612802 is an apocalyptic number.

1681612802 is a deficient number, since it is larger than the sum of its proper divisors (891413758).

1681612802 is a wasteful number, since it uses less digits than its factorization.

1681612802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77905.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1681612802 is about 41007.4725141650. The cubic root of 1681612802 is about 1189.1646803624.

The spelling of 1681612802 in words is "one billion, six hundred eighty-one million, six hundred twelve thousand, eight hundred two".