3629406389647 has 4 divisors (see below), whose sum is σ = 3651672686680. Its totient is φ = 3607140092616.

The previous prime is 3629406389639. The next prime is 3629406389671. The reversal of 3629406389647 is 7469836049263.

3629406389647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3629406389647 - 2³ = 3629406389639 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 (3629406369647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11133148272 + ... + 11133148597.

It is an arithmetic number, because the mean of its divisors is an integer number (912918171670).

Almost surely, 2^{3629406389647} is an apocalyptic number.

3629406389647 is a deficient number, since it is larger than the sum of its proper divisors (22266297033).

3629406389647 is a wasteful number, since it uses less digits than its factorization.

3629406389647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22266297032.

The product of its (nonzero) digits is 282175488, while the sum is 67.

The spelling of 3629406389647 in words is "three trillion, six hundred twenty-nine billion, four hundred six million, three hundred eighty-nine thousand, six hundred forty-seven".