3646612745 has 16 divisors (see below), whose sum is σ = 4438368000. Its totient is φ = 2875786368.

The previous prime is 3646612741. The next prime is 3646612747. The reversal of 3646612745 is 5472166463.

3646612745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3646612745 - 2² = 3646612741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3646612696 and 3646612705.

It is not an unprimeable number, because it can be changed into a prime (3646612741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253301 + ... + 267309.

It is an arithmetic number, because the mean of its divisors is an integer number (277398000).

Almost surely, 2^3646612745 is an apocalyptic number.

It is an amenable number.

3646612745 is a deficient number, since it is larger than the sum of its proper divisors (791755255).

3646612745 is a wasteful number, since it uses less digits than its factorization.

3646612745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14752.

The product of its digits is 725760, while the sum is 44.

The square root of 3646612745 is about 60387.1902393215. The cubic root of 3646612745 is about 1539.2052942750.

The spelling of 3646612745 in words is "three billion, six hundred forty-six million, six hundred twelve thousand, seven hundred forty-five".