1688864102 has 16 divisors (see below), whose sum is σ = 2652072192. Its totient is φ = 805079880.

The previous prime is 1688864101. The next prime is 1688864131. The reversal of 1688864102 is 2014688861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688864101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45674 + ... + 73917.

It is an arithmetic number, because the mean of its divisors is an integer number (165754512).

Almost surely, 2^1688864102 is an apocalyptic number.

1688864102 is a deficient number, since it is larger than the sum of its proper divisors (963208090).

1688864102 is a wasteful number, since it uses less digits than its factorization.

1688864102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119923.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 1688864102 is about 41095.7917796944. The cubic root of 1688864102 is about 1190.8714991607.

The spelling of 1688864102 in words is "one billion, six hundred eighty-eight million, eight hundred sixty-four thousand, one hundred two".