1686480696 has 128 divisors (see below), whose sum is σ = 4809830400. Its totient is φ = 547274880.

The previous prime is 1686480673. The next prime is 1686480737. The reversal of 1686480696 is 6960846861.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2750886 + ... + 2751498.

It is an arithmetic number, because the mean of its divisors is an integer number (37576800).

Almost surely, 2^1686480696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1686480696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2404915200).

1686480696 is an abundant number, since it is smaller than the sum of its proper divisors (3123349704).

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

1686480696 is a wasteful number, since it uses less digits than its factorization.

1686480696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 1686480696 is about 41066.7833656351. The cubic root of 1686480696 is about 1190.3110304377.

The spelling of 1686480696 in words is "one billion, six hundred eighty-six million, four hundred eighty thousand, six hundred ninety-six".