1688141079 has 12 divisors (see below), whose sum is σ = 2450682000. Its totient is φ = 1119770784.

The previous prime is 1688141071. The next prime is 1688141083. The reversal of 1688141079 is 9701418861.

It is a happy number.

1688141079 is a `hidden beast` number, since 168 + 8 + 1 + 410 + 79 = 666.

It is not a de Polignac number, because 1688141079 - 2³ = 1688141071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688141071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469494 + ... + 473075.

It is an arithmetic number, because the mean of its divisors is an integer number (204223500).

Almost surely, 2^1688141079 is an apocalyptic number.

1688141079 is a deficient number, since it is larger than the sum of its proper divisors (762540921).

1688141079 is a wasteful number, since it uses less digits than its factorization.

1688141079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942774 (or 942771 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1688141079 is about 41086.9940370429. The cubic root of 1688141079 is about 1190.7015327744.

The spelling of 1688141079 in words is "one billion, six hundred eighty-eight million, one hundred forty-one thousand, seventy-nine".