3645742126 has 32 divisors (see below), whose sum is σ = 5931182880. Its totient is φ = 1670722176.

The previous prime is 3645742117. The next prime is 3645742141. The reversal of 3645742126 is 6212475463.

It is a congruent number.

It is an unprimeable number.

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, 3286860 + ... + 3287968.

It is an arithmetic number, because the mean of its divisors is an integer number (185349465).

Almost surely, 2^3645742126 is an apocalyptic number.

3645742126 is a deficient number, since it is larger than the sum of its proper divisors (2285440754).

3645742126 is a wasteful number, since it uses less digits than its factorization.

3645742126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908.

The product of its digits is 241920, while the sum is 40.

The square root of 3645742126 is about 60379.9811692584. The cubic root of 3645742126 is about 1539.0827908152.

The spelling of 3645742126 in words is "three billion, six hundred forty-five million, seven hundred forty-two thousand, one hundred twenty-six".