1689742102 has 16 divisors (see below), whose sum is σ = 2615130000. Its totient is φ = 818328960.

The previous prime is 1689742069. The next prime is 1689742111. The reversal of 1689742102 is 2012479861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62727 + ... + 85522.

It is an arithmetic number, because the mean of its divisors is an integer number (163445625).

Almost surely, 2^1689742102 is an apocalyptic number.

1689742102 is a deficient number, since it is larger than the sum of its proper divisors (925387898).

1689742102 is a wasteful number, since it uses less digits than its factorization.

1689742102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148431.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 1689742102 is about 41106.4727506508. The cubic root of 1689742102 is about 1191.0778319331.

The spelling of 1689742102 in words is "one billion, six hundred eighty-nine million, seven hundred forty-two thousand, one hundred two".