1686196968 has 16 divisors (see below), whose sum is σ = 4215492480. Its totient is φ = 562065648.

The previous prime is 1686196951. The next prime is 1686196987. The reversal of 1686196968 is 8696916861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35129080 + ... + 35129127.

It is an arithmetic number, because the mean of its divisors is an integer number (263468280).

Almost surely, 2^1686196968 is an apocalyptic number.

It is an amenable number.

1686196968 is an abundant number, since it is smaller than the sum of its proper divisors (2529295512).

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

1686196968 is a wasteful number, since it uses less digits than its factorization.

1686196968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70258216 (or 70258212 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 60.

The square root of 1686196968 is about 41063.3287496277. The cubic root of 1686196968 is about 1190.2442753482.

The spelling of 1686196968 in words is "one billion, six hundred eighty-six million, one hundred ninety-six thousand, nine hundred sixty-eight".