4629721666789 has 8 divisors (see below), whose sum is σ = 4779297329408. Its totient is φ = 4480160366880.

The previous prime is 4629721666769. The next prime is 4629721666799. The reversal of 4629721666789 is 9876661279264.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4629721666789 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 (4629721666729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2933667 + ... + 4226800.

It is an arithmetic number, because the mean of its divisors is an integer number (597412166176).

Almost surely, 2^{4629721666789} is an apocalyptic number.

It is an amenable number.

4629721666789 is a deficient number, since it is larger than the sum of its proper divisors (149575662619).

4629721666789 is a wasteful number, since it uses less digits than its factorization.

4629721666789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181355.

The product of its digits is 658409472, while the sum is 73.

The spelling of 4629721666789 in words is "four trillion, six hundred twenty-nine billion, seven hundred twenty-one million, six hundred sixty-six thousand, seven hundred eighty-nine".