1685898896 has 40 divisors (see below), whose sum is σ = 3718315584. Its totient is φ = 732997760.

The previous prime is 1685898869. The next prime is 1685898911. The reversal of 1685898896 is 6988985861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204191 + ... + 212286.

Almost surely, 2^1685898896 is an apocalyptic number.

1685898896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1685898896 is an abundant number, since it is smaller than the sum of its proper divisors (2032416688).

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

1685898896 is a wasteful number, since it uses less digits than its factorization.

1685898896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416519 (or 416513 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 68.

The square root of 1685898896 is about 41059.6991708415. The cubic root of 1685898896 is about 1190.1741373582.

The spelling of 1685898896 in words is "one billion, six hundred eighty-five million, eight hundred ninety-eight thousand, eight hundred ninety-six".