1685618050 has 12 divisors (see below), whose sum is σ = 3135249666. Its totient is φ = 674247200.

The previous prime is 1685617981. The next prime is 1685618147. The reversal of 1685618050 is 508165861.

It can be written as a sum of positive squares in 3 ways, for example, as 1626589561 + 59028489 = 40331^2 + 7683^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1685617994 and 1685618012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16856131 + ... + 16856230.

Almost surely, 2^1685618050 is an apocalyptic number.

1685618050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1685618050 is a deficient number, since it is larger than the sum of its proper divisors (1449631616).

1685618050 is a wasteful number, since it uses less digits than its factorization.

1685618050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33712373 (or 33712368 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 1685618050 is about 41056.2790569238. The cubic root of 1685618050 is about 1190.1080451765.

The spelling of 1685618050 in words is "one billion, six hundred eighty-five million, six hundred eighteen thousand, fifty".