1686101436 has 18 divisors (see below), whose sum is σ = 4262089832. Its totient is φ = 562033800.

The previous prime is 1686101407. The next prime is 1686101437. The reversal of 1686101436 is 6341016861.

1686101436 is a `hidden beast` number, since 1 + 6 + 8 + 610 + 1 + 4 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 46836151 = 1686101436 / (1 + 6 + 8 + 6 + 1 + 0 + 1 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1686101436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1686101437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23418040 + ... + 23418111.

Almost surely, 2^1686101436 is an apocalyptic number.

It is an amenable number.

1686101436 is an abundant number, since it is smaller than the sum of its proper divisors (2575988396).

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

1686101436 is a wasteful number, since it uses less digits than its factorization.

1686101436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46836161 (or 46836156 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1686101436 is about 41062.1655054869. The cubic root of 1686101436 is about 1190.2217970404.

The spelling of 1686101436 in words is "one billion, six hundred eighty-six million, one hundred one thousand, four hundred thirty-six".