3646607646 has 16 divisors (see below), whose sum is σ = 7956235008. Its totient is φ = 1105032600.

The previous prime is 3646607603. The next prime is 3646607759. The reversal of 3646607646 is 6467066463.

It is a super-2 number, since 2×3646607646² = 26595494647731322632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3646607595 and 3646607604.

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 7 ways as a sum of consecutive naturals, for example, 27625750 + ... + 27625881.

It is an arithmetic number, because the mean of its divisors is an integer number (497264688).

Almost surely, 2^3646607646 is an apocalyptic number.

3646607646 is an abundant number, since it is smaller than the sum of its proper divisors (4309627362).

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

3646607646 is a wasteful number, since it uses less digits than its factorization.

3646607646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55251647.

The product of its (nonzero) digits is 2612736, while the sum is 48.

The square root of 3646607646 is about 60387.1480200879. The cubic root of 3646607646 is about 1539.2045768593.

The spelling of 3646607646 in words is "three billion, six hundred forty-six million, six hundred seven thousand, six hundred forty-six".