1688486712 has 64 divisors (see below), whose sum is σ = 4729449600. Its totient is φ = 497831040.

The previous prime is 1688486707. The next prime is 1688486731. The reversal of 1688486712 is 2176848861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76662 + ... + 96197.

It is an arithmetic number, because the mean of its divisors is an integer number (73897650).

Almost surely, 2^1688486712 is an apocalyptic number.

1688486712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1688486712 is an abundant number, since it is smaller than the sum of its proper divisors (3040962888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1688486712 is a wasteful number, since it uses less digits than its factorization.

1688486712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172916 (or 172912 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 51.

The square root of 1688486712 is about 41091.1999338058. The cubic root of 1688486712 is about 1190.7827893440.

The spelling of 1688486712 in words is "one billion, six hundred eighty-eight million, four hundred eighty-six thousand, seven hundred twelve".