1686675950 has 24 divisors (see below), whose sum is σ = 3180199728. Its totient is φ = 665426880.

The previous prime is 1686675943. The next prime is 1686675953. The reversal of 1686675950 is 595766861.

It is a junction number, because it is equal to n+sod(n) for n = 1686675892 and 1686675901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1686675953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227402 + ... + 234701.

It is an arithmetic number, because the mean of its divisors is an integer number (132508322).

Almost surely, 2^1686675950 is an apocalyptic number.

1686675950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1686675950 is a deficient number, since it is larger than the sum of its proper divisors (1493523778).

1686675950 is a wasteful number, since it uses less digits than its factorization.

1686675950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462188 (or 462183 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 1686675950 is about 41069.1605709199. The cubic root of 1686675950 is about 1190.3569651509.

The spelling of 1686675950 in words is "one billion, six hundred eighty-six million, six hundred seventy-five thousand, nine hundred fifty".