3661736694 has 32 divisors (see below), whose sum is σ = 9130565376. Its totient is φ = 951100320.

The previous prime is 3661736693. The next prime is 3661736737. The reversal of 3661736694 is 4966371663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661736693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3962457 + ... + 3963380.

It is an arithmetic number, because the mean of its divisors is an integer number (285330168).

Almost surely, 2^3661736694 is an apocalyptic number.

3661736694 is an abundant number, since it is smaller than the sum of its proper divisors (5468828682).

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

3661736694 is a wasteful number, since it uses less digits than its factorization.

3661736694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925860.

The product of its digits is 2939328, while the sum is 51.

The square root of 3661736694 is about 60512.2854798924. The cubic root of 3661736694 is about 1541.3302575143.

The spelling of 3661736694 in words is "three billion, six hundred sixty-one million, seven hundred thirty-six thousand, six hundred ninety-four".