3645126117 has 28 divisors (see below), whose sum is σ = 5752852480. Its totient is φ = 2302176168.

The previous prime is 3645126101. The next prime is 3645126119. The reversal of 3645126117 is 7116215463.

3645126117 is a `hidden beast` number, since 3 + 645 + 1 + 2 + 6 + 1 + 1 + 7 = 666.

3645126117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3645126117 - 2⁴ = 3645126101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645126119) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 117733 + ... + 145434.

Almost surely, 2^3645126117 is an apocalyptic number.

It is an amenable number.

3645126117 is a deficient number, since it is larger than the sum of its proper divisors (2107726363).

3645126117 is an equidigital number, since it uses as much as digits as its factorization.

3645126117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263204 (or 263189 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3645126117 is about 60374.8798508121. The cubic root of 3645126117 is about 1538.9961013546.

The spelling of 3645126117 in words is "three billion, six hundred forty-five million, one hundred twenty-six thousand, one hundred seventeen".