3640101686 has 16 divisors (see below), whose sum is σ = 5926470144. Its totient is φ = 1666816704.

The previous prime is 3640101671. The next prime is 3640101709. The reversal of 3640101686 is 6861010463.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547895 + ... + 554498.

It is an arithmetic number, because the mean of its divisors is an integer number (370404384).

Almost surely, 2^3640101686 is an apocalyptic number.

3640101686 is a deficient number, since it is larger than the sum of its proper divisors (2286368458).

3640101686 is a wasteful number, since it uses less digits than its factorization.

3640101686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102535.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3640101686 is about 60333.2552246272. The cubic root of 3640101686 is about 1538.2886603270.

The spelling of 3640101686 in words is "three billion, six hundred forty million, one hundred one thousand, six hundred eighty-six".